| activity | | |
| n. (act) | 1. activity | any specific behavior.; "they avoided all recreational activity" |
| ~ human action, human activity, act, deed | something that people do or cause to happen. |
| ~ variation, variance | an activity that varies from a norm or standard.; "any variation in his routine was immediately reported" |
| ~ space walk | any kind of physical activity outside a spacecraft by one of the crew. |
| ~ domesticity | domestic activities or life.; "making a hobby of domesticity" |
| ~ operation | the activity of operating something (a machine or business etc.).; "her smooth operation of the vehicle gave us a surprisingly comfortable ride" |
| ~ operation | a planned activity involving many people performing various actions.; "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations" |
| ~ practice, pattern | a customary way of operation or behavior.; "it is their practice to give annual raises"; "they changed their dietary pattern" |
| ~ diversion, recreation | an activity that diverts or amuses or stimulates.; "scuba diving is provided as a diversion for tourists"; "for recreation he wrote poetry and solved crossword puzzles"; "drug abuse is often regarded as a form of recreation" |
| ~ cup of tea, dish, bag | an activity that you like or at which you are superior.; "chemistry is not my cup of tea"; "his bag now is learning to play golf"; "marriage was scarcely his dish" |
| ~ follow-up, followup | an activity that continues something that has already begun or that repeats something that has already been done. |
| ~ game | a contest with rules to determine a winner.; "you need four people to play this game" |
| ~ turn, play | (game) the activity of doing something in an agreed succession.; "it is my turn"; "it is still my play" |
| ~ music | musical activity (singing or whistling etc.).; "his music was his central interest" |
| ~ acting, performing, playacting, playing | the performance of a part or role in a drama. |
| ~ liveliness, animation | general activity and motion. |
| ~ burst, fit | a sudden flurry of activity (often for no obvious reason).; "a burst of applause"; "a fit of housecleaning" |
| ~ work | activity directed toward making or doing something.; "she checked several points needing further work" |
| ~ deeds, works | performance of moral or religious acts.; "salvation by deeds"; "the reward for good works" |
| ~ service | (law) the acts performed by an English feudal tenant for the benefit of his lord which formed the consideration for the property granted to him. |
| ~ job, line of work, occupation, business, line | the principal activity in your life that you do to earn money.; "he's not in my line of business" |
| ~ occupation | any activity that occupies a person's attention.; "he missed the bell in his occupation with the computer game" |
| ~ committal to writing, writing | the activity of putting something in written form.; "she did the thinking while he did the writing" |
| ~ role | normal or customary activity of a person in a particular social setting.; "what is your role on the team?" |
| ~ actus reus, wrongful conduct, misconduct, wrongdoing | activity that transgresses moral or civil law.; "he denied any wrongdoing" |
| ~ waste, wastefulness, dissipation | useless or profitless activity; using or expending or consuming thoughtlessly or carelessly.; "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources" |
| ~ attempt, effort, try, endeavor, endeavour | earnest and conscientious activity intended to do or accomplish something.; "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try" |
| ~ control | the activity of managing or exerting control over something.; "the control of the mob by the police was admirable" |
| ~ protection | the activity of protecting someone or something.; "the witnesses demanded police protection" |
| ~ sensory activity | activity intended to achieve a particular sensory result. |
| ~ didactics, education, educational activity, instruction, pedagogy, teaching | the activities of educating or instructing; activities that impart knowledge or skill.; "he received no formal education"; "our instruction was carefully programmed"; "good classroom teaching is seldom rewarded" |
| ~ grooming, training, preparation | activity leading to skilled behavior. |
| ~ representation | an activity that stands as an equivalent of something or results in an equivalent. |
| ~ creation, creative activity | the human act of creating. |
| ~ disassembly, dismantlement, dismantling | the act of taking something apart (as a piece of machinery).; "Russia and the United States discussed the dismantling of their nuclear weapons" |
| ~ puncture | the act of puncturing or perforating. |
| ~ search, hunting, hunt | the activity of looking thoroughly in order to find something or someone. |
| ~ usage, use, utilisation, utilization, exercise, employment | the act of using.; "he warned against the use of narcotic drugs"; "skilled in the utilization of computers" |
| ~ military operation, operation | activity by a military or naval force (as a maneuver or campaign).; "it was a joint operation of the navy and air force" |
| ~ measurement, measuring, mensuration, measure | the act or process of assigning numbers to phenomena according to a rule.; "the measurements were carefully done"; "his mental measurings proved remarkably accurate" |
| ~ calibration, standardisation, standardization | the act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument.; "the thermometer needed calibration" |
| ~ organisation, organization | the activity or result of distributing or disposing persons or things properly or methodically.; "his organization of the work force was very efficient" |
| ~ grouping | the activity of putting things together in groups. |
| ~ supporting, support | the act of bearing the weight of or strengthening.; "he leaned against the wall for support" |
| ~ continuance, continuation | the act of continuing an activity without interruption. |
| ~ procedure, process | a particular course of action intended to achieve a result.; "the procedure of obtaining a driver's license"; "it was a process of trial and error" |
| ~ ceremony | any activity that is performed in an especially solemn elaborate or formal way.; "the ceremony of smelling the cork and tasting the wine"; "he makes a ceremony of addressing his golf ball"; "he disposed of it without ceremony" |
| ~ ceremony | the proper or conventional behavior on some solemn occasion.; "an inaugural ceremony" |
| ~ worship | the activity of worshipping. |
| ~ activating, energizing, activation | the activity of causing to have energy and be active. |
| ~ concealing, hiding, concealment | the activity of keeping something secret. |
| ~ locating, positioning, emplacement, location, placement, position | the act of putting something in a certain place. |
| ~ supplying, provision, supply | the activity of supplying or providing something. |
| ~ demand | the act of demanding.; "the kidnapper's exorbitant demands for money" |
| ~ pleasure | an activity that affords enjoyment.; "he puts duty before pleasure" |
| ~ delectation, enjoyment | act of receiving pleasure from something. |
| ~ lamentation, mourning | the passionate and demonstrative activity of expressing grief. |
| ~ laughter | the activity of laughing; the manifestation of joy or mirth or scorn.; "he enjoyed the laughter of the crowd" |
| ~ market, marketplace, market place | the world of commercial activity where goods and services are bought and sold.; "without competition there would be no market"; "they were driven from the marketplace" |
| ~ politics | the activities and affairs involved in managing a state or a government.; "unemployment dominated the politics of the inter-war years"; "government agencies multiplied beyond the control of representative politics" |
| ~ preparation, readying | the activity of putting or setting in order in advance of some act or purpose.; "preparations for the ceremony had begun" |
| ~ assist, assistance, help, aid | the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose.; "he gave me an assist with the housework"; "could not walk without assistance"; "rescue party went to their aid"; "offered his help in unloading" |
| ~ support | the activity of providing for or maintaining by supplying with money or necessities.; "his support kept the family together"; "they gave him emotional support during difficult times" |
| ~ behavior, conduct, doings, behaviour | manner of acting or controlling yourself. |
| ~ behaviour, behavior | (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation. |
| ~ leadership, leading | the activity of leading.; "his leadership inspired the team" |
| ~ precession, precedence, precedency | the act of preceding in time or order or rank (as in a ceremony). |
| ~ solo | any activity that is performed alone without assistance. |
| ~ buzz | a confusion of activity and gossip.; "the buzz of excitement was so great that a formal denial was issued" |
| ~ fun | violent and excited activity.; "she asked for money and then the fun began"; "they began to fight like fun" |
| ~ hell, sin | violent and excited activity.; "they began to fight like sin" |
| ~ outlet, vent, release | activity that frees or expresses creative energy or emotion.; "she had no other outlet for her feelings"; "he gave vent to his anger" |
| ~ last | a person's dying act; the final thing a person can do.; "he breathed his last" |
| ~ obfuscation, mystification | the activity of obscuring people's understanding, leaving them baffled or bewildered. |
| ~ negotiation | the activity or business of negotiating an agreement; coming to terms. |
| ~ verbalisation, verbalization | the activity of expressing something in words. |
| ~ disturbance, perturbation | activity that is a malfunction, intrusion, or interruption.; "the term `distress' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function" |
| ~ timekeeping | the act or process of determining the time. |
| n. (state) | 2. action, activeness, activity | the state of being active.; "his sphere of activity"; "he is out of action" |
| ~ state | the way something is with respect to its main attributes.; "the current state of knowledge"; "his state of health"; "in a weak financial state" |
| ~ agency | the state of being in action or exerting power.; "the agency of providence"; "she has free agency" |
| ~ busyness, hum | the state of being or appearing to be actively engaged in an activity.; "they manifested all the busyness of a pack of beavers"; "there is a constant hum of military preparation" |
| ~ behaviour, behavior | the action or reaction of something (as a machine or substance) under specified circumstances.; "the behavior of small particles can be studied in experiments" |
| ~ eructation, extravasation, eruption | (of volcanos) pouring out fumes or lava (or a deposit so formed). |
| ~ operation | the state of being in effect or being operative.; "that rule is no longer in operation" |
| ~ overdrive | the state of high or excessive activity or productivity or concentration.; "Troops are ready to go into overdrive as soon as the signal is given"; "Melissa's brain was in overdrive" |
| ~ play | a state in which action is feasible.; "the ball was still in play"; "insiders said the company's stock was in play" |
| ~ swing | a state of steady vigorous action that is characteristic of an activity.; "the party went with a swing"; "it took time to get into the swing of things" |
| n. (process) | 3. activity, bodily function, bodily process, body process | an organic process that takes place in the body.; "respiratory activity" |
| ~ control | (physiology) regulation or maintenance of a function or action or reflex etc.; "the timing and control of his movements were unimpaired"; "he had lost control of his sphincters" |
| ~ breathing, external respiration, respiration, ventilation | the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation. |
| ~ respiration | a single complete act of breathing in and out.; "thirty respirations per minute" |
| ~ breath | the process of taking in and expelling air during breathing.; "he took a deep breath and dived into the pool"; "he was fighting to his last breath" |
| ~ consumption, ingestion, intake, uptake | the process of taking food into the body through the mouth (as by eating). |
| ~ sex, sex activity, sexual activity, sexual practice | activities associated with sexual intercourse.; "they had sex in the back seat" |
| ~ insemination | the introduction of semen into the genital tract of a female. |
| ~ sleeping | the suspension of consciousness and decrease in metabolic rate. |
| ~ response, reaction | a bodily process occurring due to the effect of some antecedent stimulus or agent.; "a bad reaction to the medicine"; "his responses have slowed with age" |
| ~ crying, tears, weeping | the process of shedding tears (usually accompanied by sobs or other inarticulate sounds).; "I hate to hear the crying of a child"; "she was in tears" |
| ~ ablactation | the cessation of lactation. |
| ~ anastalsis | muscular action of the alimentary tract in a direction opposite to peristalsis. |
| ~ expelling, discharge, emission | any of several bodily processes by which substances go out of the body.; "the discharge of pus" |
| ~ expectoration | the process of coughing up and spitting out. |
| ~ festering, suppuration, maturation | (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus. |
| ~ healing | the natural process by which the body repairs itself. |
| ~ hypostasis | the accumulation of blood in an organ. |
| ~ lachrymation, lacrimation, tearing, watering | shedding tears. |
| ~ lactation | the production and secretion of milk by the mammary glands. |
| ~ opsonisation, opsonization | process whereby opsonins make an invading microorganism more susceptible to phagocytosis. |
| ~ biological process, organic process | a process occurring in living organisms. |
| ~ overactivity | excessive activity.; "overactivity of the sebaceous glands causes the skin to become oily" |
| ~ peristalsis, vermiculation | the process of wavelike muscle contractions of the alimentary tract that moves food along. |
| ~ diaphoresis, hidrosis, sudation, sweating, perspiration | the process of the sweat glands of the skin secreting a salty fluid.; "perspiration is a homeostatic process" |
| ~ phagocytosis | process in which phagocytes engulf and digest microorganisms and cellular debris; an important defense against infection. |
| ~ pinocytosis | process by which certain cells can engulf and incorporate droplets of fluid. |
| ~ placentation | the formation of the placenta in the uterus. |
| ~ psilosis | falling out of hair. |
| ~ tanning | process in which skin pigmentation darkens as a result of exposure to ultraviolet light. |
| ~ transpiration | the process of giving off or exhaling water vapor through the skin or mucous membranes. |
| n. (state) | 4. activity | (chemistry) the capacity of a substance to take part in a chemical reaction.; "catalytic activity" |
| ~ chemical science, chemistry | the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. |
| ~ capability, capacity | the susceptibility of something to a particular treatment.; "the capability of a metal to be fused" |
| n. (process) | 5. action, activity, natural action, natural process | a process existing in or produced by nature (rather than by the intent of human beings).; "the action of natural forces"; "volcanic activity" |
| ~ physical process, process | a sustained phenomenon or one marked by gradual changes through a series of states.; "events now in process"; "the process of calcification begins later for boys than for girls" |
| ~ radiation | the spread of a group of organisms into new habitats. |
| ~ absorption | (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium.; "the absorption of photons by atoms or molecules" |
| ~ acidification | the process of becoming acid or being converted into an acid. |
| ~ adiabatic process | (thermodynamics) any process that occurs without gain or loss of heat. |
| ~ aeration | the process of exposing to air (so as to purify).; "the aeration of the soil" |
| ~ antiredeposition | the process of preventing redeposition. |
| ~ capture | any process in which an atomic or nuclear system acquires an additional particle. |
| ~ capture | a process whereby a star or planet holds an object in its gravitational field. |
| ~ centrifugation | the process of separating substances of different densities by the use of a centrifuge. |
| ~ chemical action, chemical change, chemical process | (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved. |
| ~ chromatography | a process used for separating mixtures by virtue of differences in absorbency. |
| ~ concretion | the formation of stonelike objects within a body organ (e.g., the kidneys). |
| ~ condensation | the process of changing from a gaseous to a liquid or solid state. |
| ~ convection | (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere. |
| ~ clotting, coagulation, curdling | the process of forming semisolid lumps in a liquid. |
| ~ decay | the process of gradually becoming inferior. |
| ~ demagnetisation, demagnetization | the process of removing magnetization. |
| ~ desorption | changing from an adsorbed state on a surface to a gaseous or liquid state. |
| ~ diffusion | (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration. |
| ~ dissolution, disintegration | separation into component parts. |
| ~ distillation, distillment | the process of purifying a liquid by boiling it and condensing its vapors. |
| ~ drift | the gradual departure from an intended course due to external influences (as a ship or plane). |
| ~ effervescence | the process of bubbling as gas escapes. |
| ~ cataphoresis, dielectrolysis, electrophoresis, ionophoresis | the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode. |
| ~ ecesis, establishment | (ecology) the process by which a plant or animal becomes established in a new habitat. |
| ~ extinction | the reduction of the intensity of radiation as a consequence of absorption and radiation. |
| ~ extraction | the process of obtaining something from a mixture or compound by chemical or physical or mechanical means. |
| ~ feedback | the process in which part of the output of a system is returned to its input in order to regulate its further output. |
| ~ filtration | the process whereby fluids pass through a filter or a filtering medium. |
| ~ flocculation | the process of flocculating; forming woolly cloudlike aggregations. |
| ~ flow | any uninterrupted stream or discharge. |
| ~ formation | natural process that causes something to form.; "the formation of gas in the intestine"; "the formation of crystals"; "the formation of pseudopods" |
| ~ fossilisation, fossilization | the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone. |
| ~ geologic process, geological process | (geology) a natural process whereby geological features are modified. |
| ~ curing, solidification, solidifying, hardening, set | the process of becoming hard or solid by cooling or drying or crystallization.; "the hardening of concrete"; "he tested the set of the glue" |
| ~ inactivation | the process of rendering inactive.; "the gene inactivation system"; "thermal inactivation of serum samples" |
| ~ ion exchange | a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid; widely used in industrial processing. |
| ~ ionisation, ionization | the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas. |
| ~ leach, leaching | the process of leaching. |
| ~ magnetic induction, magnetisation, magnetization | the process that makes a substance magnetic (temporarily or permanently). |
| ~ materialisation, materialization | the process of coming into being; becoming reality.; "the materialization of her dream" |
| ~ nuclear reaction | (physics) a process that alters the energy or structure or composition of atomic nuclei. |
| ~ opacification | the process of becoming cloudy or opaque. |
| ~ oscillation | the process of oscillating between states. |
| ~ oxygenation | the process of providing or combining or treating with oxygen.; "the oxygenation of the blood" |
| ~ pair creation, pair formation, pair production | the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus. |
| ~ phase change, phase transition, physical change, state change | a change from one state (solid or liquid or gas) to another without a change in chemical composition. |
| ~ precession of the equinoxes | a slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation. |
| ~ release | a process that liberates or discharges something.; "there was a sudden release of oxygen"; "the release of iodine from the thyroid gland" |
| ~ saltation | (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface. |
| ~ scattering | the physical process in which particles are deflected haphazardly as a result of collisions. |
| ~ sericulture | raising silkworms in order to obtain raw silk. |
| ~ sink | (technology) a process that acts to absorb or remove energy or a substance from a system.; "the ocean is a sink for carbon dioxide" |
| ~ soak, soakage, soaking | the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid).; "a good soak put life back in the wagon" |
| ~ softening | the process of becoming softer.; "refrigeration delayed the softening of the fruit"; "he observed the softening of iron by heat" |
| ~ sorption | the process in which one substance takes up or holds another (by either absorption or adsorption). |
| ~ source | (technology) a process by which energy or a substance enters a system.; "a heat source"; "a source of carbon dioxide" |
| ~ rigidification, rigidifying, stiffening | the process of becoming stiff or rigid. |
| ~ stimulation | (physiology) the effect of a stimulus (on nerves or organs etc.). |
| ~ ecological succession, succession | (ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established. |
| ~ natural selection, survival of the fittest, survival, selection | a natural process resulting in the evolution of organisms best adapted to the environment. |
| ~ synergism, synergy | the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects. |
| ~ temperature change | a process whereby the degree of hotness of a body (or medium) changes. |
| ~ transduction | the process whereby a transducer accepts energy in one form and gives back related energy in a different form.; "the transduction of acoustic waves into voltages by a microphone" |
| ~ transpiration | the passage of gases through fine tubes because of differences in pressure or temperature. |
| ~ vitrification | the process of becoming vitreous. |
| n. (attribute) | 6. activeness, activity | the trait of being active; moving or acting rapidly and energetically.; "the level of activity declines with age" |
| ~ trait | a distinguishing feature of your personal nature. |
| ~ brio, invigoration, spiritedness, vivification, animation | quality of being active or spirited or alive and vigorous. |
| ~ pizzaz, pizzazz, oomph, zing, dynamism | the activeness of an energetic personality. |
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