| countersign | | |
| n. (communication) | 1. countersign, parole, password, watchword, word | a secret word or phrase known only to a restricted group.; "he forgot the password" |
| ~ arcanum, secret | information known only to a special group.; "the secret of Cajun cooking" |
| ~ positive identification | evidence proving that you are who you say you are; evidence establishing that you are among the group of people already known to the system; recognition by the system leads to acceptance.; "a system for positive identification can prevent the use of a single identity by several people" |
| n. (communication) | 2. countersign, countersignature | a second confirming signature endorsing a document already signed. |
| ~ signature | your name written in your own handwriting. |
| v. (communication) | 3. countersign | add one's signature to after another's to attest authenticity.; "You must countersign on this line of the contract" |
| ~ sign | be engaged by a written agreement.; "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera" |
| sign | | |
| n. (communication) | 1. mark, sign | a perceptible indication of something not immediately apparent (as a visible clue that something has happened).; "he showed signs of strain"; "they welcomed the signs of spring" |
| ~ clew, clue, cue | evidence that helps to solve a problem. |
| ~ token | something serving as a sign of something else. |
| n. (communication) | 2. sign | a public display of a message.; "he posted signs in all the shop windows" |
| ~ communication | something that is communicated by or to or between people or groups. |
| ~ placard, poster, posting, notice, bill, card | a sign posted in a public place as an advertisement.; "a poster advertised the coming attractions" |
| ~ street sign | a sign visible from the street. |
| ~ signpost, guidepost | a post bearing a sign that gives directions or shows the way. |
| n. (communication) | 3. sign, signal, signaling | any nonverbal action or gesture that encodes a message.; "signals from the boat suddenly stopped" |
| ~ communication | something that is communicated by or to or between people or groups. |
| ~ recording | a signal that encodes something (e.g., picture or sound) that has been recorded. |
| ~ phone number, telephone number, number | the number is used in calling a particular telephone.; "he has an unlisted number" |
| ~ starting signal, start | a signal to begin (as in a race).; "the starting signal was a green light"; "the runners awaited the start" |
| ~ storm signal | a signal announcing the approach of a storm (particularly a storm of marked violence). |
| ~ beam, radio beam | a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather. |
| ~ ticktack | system of signalling by hand signs used by bookmakers at racetracks. |
| ~ time signal | a signal (especially electronic or by radio) indicating the precisely correct time. |
| ~ dog-ear | a corner of a page turned down to mark your place. |
| ~ animal communication | communication between animals (of the same species). |
| ~ alarum, warning signal, alarm, alert | an automatic signal (usually a sound) warning of danger. |
| ~ distress call, distress signal | an internationally recognized signal sent out by a ship or plane indicating that help is needed. |
| ~ all clear | a signal (usually a siren) that danger is over. |
| ~ bugle call | a signal broadcast by the sound of a bugle. |
| ~ curfew | a signal (usually a bell) announcing the start of curfew restrictions. |
| ~ retreat | (military) a signal to begin a withdrawal from a dangerous position. |
| ~ drumbeat | (military) the beating of a drum as a signal for lowering the flag at sundown. |
| ~ radiotelegraphic signal, telegraphic signal | a signal transmitted by telegraphy. |
| ~ whistle, whistling | the act of signalling (e.g., summoning) by whistling or blowing a whistle.; "the whistle signalled the end of the game" |
| ~ high sign | a silent signal of warning or recognition.; "she started to speak but he gave her the high sign" |
| ~ symbol | an arbitrary sign (written or printed) that has acquired a conventional significance. |
| ~ visual signal | a signal that involves visual communication. |
| ~ indicator | a signal for attracting attention. |
| ~ electronic signal | a signal generated by electronic means. |
| ~ radio beacon | a characteristic signal emitted by a transmitter used for navigation. |
| ~ input, input signal | signal going into an electronic system. |
| ~ output signal, output | signal that comes out of an electronic system. |
| n. (artifact) | 4. sign, signboard | structure displaying a board on which advertisements can be posted.; "the highway was lined with signboards" |
| ~ billboard, hoarding | large outdoor signboard. |
| ~ sandwich board | signboard consisting of two hinged boards that hang front and back from the shoulders of a walker and are used to display advertisements. |
| ~ scoreboard | a large board for displaying the score of a contest (and some other information). |
| ~ shingle | a small signboard outside the office of a lawyer or doctor, e.g.. |
| ~ structure, construction | a thing constructed; a complex entity constructed of many parts.; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons" |
| n. (location) | 5. house, mansion, planetary house, sign, sign of the zodiac, star sign | (astrology) one of 12 equal areas into which the zodiac is divided. |
| ~ astrology, star divination | a pseudoscience claiming divination by the positions of the planets and sun and moon. |
| ~ region, part | the extended spatial location of something.; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space" |
| ~ zodiac | a belt-shaped region in the heavens on either side to the ecliptic; divided into 12 constellations or signs for astrological purposes. |
| ~ aries the ram, aries, ram | the first sign of the zodiac which the sun enters at the vernal equinox; the sun is in this sign from about March 21 to April 19. |
| ~ taurus the bull, taurus, bull | the second sign of the zodiac; the sun is in this sign from about April 20 to May 20. |
| ~ gemini the twins, twins, gemini | the third sign of the zodiac; the sun is in this sign from about May 21 to June 20. |
| ~ cancer the crab, cancer, crab | the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22. |
| ~ leo the lion, leo, lion | the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22. |
| ~ virgo the virgin, virgin, virgo | the sixth sign of the zodiac; the sun is in this sign from about August 23 to September 22. |
| ~ libra the balance, libra the scales, libra, balance | the seventh sign of the zodiac; the sun is in this sign from about September 23 to October 22. |
| ~ scorpio the scorpion, scorpion, scorpio | the eighth sign of the zodiac; the sun is in this sign from about October 23 to November 21. |
| ~ sagittarius the archer, archer, sagittarius | the ninth sign of the zodiac; the sun is in this sign from about November 22 to December 21. |
| ~ capricorn the goat, capricorn, goat | the tenth sign of the zodiac; the sun is in this sign from about December 22 to January 19. |
| ~ aquarius the water bearer, water bearer, aquarius | the eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18. |
| ~ pisces, pisces the fishes, fish | the twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20. |
| n. (state) | 6. sign | (medicine) any objective evidence of the presence of a disorder or disease.; "there were no signs of asphyxiation" |
| ~ evidence, grounds | your basis for belief or disbelief; knowledge on which to base belief.; "the evidence that smoking causes lung cancer is very compelling" |
| ~ medical specialty, medicine | the branches of medical science that deal with nonsurgical techniques. |
| ~ disease | an impairment of health or a condition of abnormal functioning. |
| ~ vital sign | sign of life; usually an indicator of a person's general physical condition.; "he was still alive but his vital signs were weak" |
| n. (linkdef) | 7. polarity, sign | having an indicated pole (as the distinction between positive and negative electric charges).; "he got the polarity of the battery reversed"; "charges of opposite sign" |
| ~ oppositeness, opposition | the relation between opposed entities. |
| ~ positiveness, positivity | the character of the positive electric pole. |
| ~ negativeness, negativity | the character of the negative electric pole. |
| n. (event) | 8. augury, foretoken, preindication, sign | an event that is experienced as indicating important things to come.; "he hoped it was an augury"; "it was a sign from God" |
| ~ experience | an event as apprehended.; "a surprising experience"; "that painful experience certainly got our attention" |
| ~ war cloud | an ominous sign that war threatens. |
| ~ omen, portent, prognostic, prognostication, presage, prodigy | a sign of something about to happen.; "he looked for an omen before going into battle" |
| n. (communication) | 9. sign | a gesture that is part of a sign language. |
| ~ sign language, signing | language expressed by visible hand gestures. |
| ~ motion, gesture | the use of movements (especially of the hands) to communicate familiar or prearranged signals. |
| n. (communication) | 10. sign | a fundamental linguistic unit linking a signifier to that which is signified.; "The bond between the signifier and the signified is arbitrary" |
| ~ linguistics | the scientific study of language. |
| ~ language unit, linguistic unit | one of the natural units into which linguistic messages can be analyzed. |
| n. (communication) | 11. sign | a character indicating a relation between quantities.; "don't forget the minus sign" |
| ~ mathematical notation | a notation used by mathematicians. |
| ~ equal sign | a sign indicating that the quantities on either side are equal. |
| ~ plus sign | a sign indicating the operation of addition. |
| ~ minus sign | a sign indicating the operation of subtraction. |
| ~ radical sign | a sign indicating the extraction of a root. |
| v. (communication) | 12. sign, subscribe | mark with one's signature; write one's name (on).; "She signed the letter and sent it off"; "Please sign here" |
| ~ write | communicate or express by writing.; "Please write to me every week" |
| ~ rubricate | sign with a mark instead of a name. |
| v. (social) | 13. ratify, sign | approve and express assent, responsibility, or obligation.; "All parties ratified the peace treaty"; "Have you signed your contract yet?" |
| ~ endorse, indorse | sign as evidence of legal transfer.; "endorse cheques" |
| ~ validate, formalise, formalize | declare or make legally valid. |
| v. (communication) | 14. sign | be engaged by a written agreement.; "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera" |
| ~ contract, undertake | enter into a contractual arrangement. |
| ~ undersign | sign at the bottom of (a document). |
| ~ ink | append one's signature to.; "They inked the contract" |
| ~ autograph, inscribe | mark with one's signature.; "The author autographed his book" |
| ~ initial | mark with one's initials. |
| ~ countersign | add one's signature to after another's to attest authenticity.; "You must countersign on this line of the contract" |
| ~ execute | sign in the presence of witnesses.; "The President executed the treaty" |
| ~ endorse, indorse | sign as evidence of legal transfer.; "endorse cheques" |
| v. (social) | 15. contract, sign, sign on, sign up | engage by written agreement.; "They signed two new pitchers for the next season" |
| ~ hire, employ, engage | engage or hire for work.; "They hired two new secretaries in the department"; "How many people has she employed?" |
| ~ contract out | assign a job to someone outside one's own business. |
| v. (communication) | 16. sign, signal, signalise, signalize | communicate silently and non-verbally by signals or signs.; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu" |
| ~ communicate, intercommunicate | transmit thoughts or feelings.; "He communicated his anxieties to the psychiatrist" |
| ~ wigwag | signal by or as if by a flag or light waved according to a code. |
| ~ semaphore | send signals by or as if by semaphore. |
| ~ heliograph | signal by means of a mirror and the using the sun's rays. |
| ~ flag | communicate or signal with a flag. |
| ~ whistle | give a signal by whistling.; "She whistled for her maid" |
| v. (contact) | 17. sign | place signs, as along a road.; "sign an intersection"; "This road has been signed" |
| ~ lay, place, put, set, position, pose | put into a certain place or abstract location.; "Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point" |
| v. (communication) | 18. sign | communicate in sign language.; "I don't know how to sign, so I could not communicate with my deaf cousin" |
| ~ communicate, intercommunicate | transmit thoughts or feelings.; "He communicated his anxieties to the psychiatrist" |
| v. (communication) | 19. bless, sign | make the sign of the cross over someone in order to call on God for protection; consecrate. |
| ~ gesticulate, gesture, motion | show, express or direct through movement.; "He gestured his desire to leave" |
| adj. | 20. gestural, sign, sign-language, signed | used of the language of the deaf. |
| ~ communicatory, communicative | able or tending to communicate.; "was a communicative person and quickly told all she knew" |
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