Word definition: expression

Defiintion of expression:

[n] the act of forcing something out by squeezing or pressing; "the expression of milk from her breast"
[n] the expression on a person's face; "a sad expression"; "a look of triumph"; "an angry face"
[n] a group of words that form a constituent of a sentence and are considered as a single unit; "I concluded from his awkward constructions that he was a foreigner"
[n] a group of symbols that make a mathematical statement
[n] expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition"
[n] the style of expressing yourself; "he suggested a better formulation"; "his manner of expression showed how much he cared"
[n] the communication (in speech or writing) of your beliefs or opinions; "expressions of good will"; "he helped me find expression for my ideas"
[n] a word or phrase that particular people use in particular situations; "pardon the expression"
[n] (genetics) the process of expressing a gene

Synonyms of expression:

aspect, construction, face, facial expression, formula, formulation, grammatical construction, locution, look, manifestation, reflection, reflexion, saying

Antonyms of expression:

misconstruction

See Also:

act, adage, adjunct, advice and consent, agrapha, ambiguity, Americanism, anatomical, anatomical reference, Anglicism, archaicism, archaism, articulation, axiom, Beatitude, biological process, boilerplate, Briticism, Britishism, byword, calque, catchword, choice of words, clause, cold turkey, colloquialism, communicating, communication, complement, congratulation, constituent, countenance, demo, demonstration, diction, effusion, epigram, euphemism, exponential expression, expressive style, felicitation, grammatical constituent, gush, honorific, idiom, idiomatic expression, involution, lamentation, language, laughter, leer, light, loan translation, logion, mathematical statement, maxim, motto, mourning, oral communication, organic process, outburst, parlance, phrasal idiom, phrase, phraseology, phrasing, predicator, primitive, proverb, quip, saw, sentential function, set phrase, shibboleth, shucks, slogan, southernism, spark, sparkle, speech, speech communication, spoken communication, spoken language, squeeze, squeezing, style, tongue twister, verbiage, visage, voice, voice communication, wording

Webster Dictionary (1913) for expression:

\Ex*pres"sion\ ([e^]ks*pr[e^]sh"[u^]n), n. [L.
expressio: cf. F. expression.]
1. The act of expressing; the act of forcing out by pressure;
   as, the expression of juices or oils; also, of extorting
   or eliciting; as, a forcible expression of truth.

2. The act of declaring or signifying; declaration;
   utterance; as, an expression of the public will.

         With this tone of philosophy were mingled
         expressions of sympathy.              --Prescott.

3. Lively or vivid representation of meaning, sentiment, or
   feeling, etc.; significant and impressive indication,
   whether by language, appearance, or gesture; that manner
   or style which gives life and suggestive force to ideas
   and sentiments; as, he reads with expression; her
   performance on the piano has expression.

         The imitators of Shakespeare, fixing their attention
         on his wonderful power of expression, have directed
         their imitation to this.              --M. Arnold.

4. That which is expressed by a countenance, a posture, a
   work of art, etc.; look, as indicative of thought or
   feeling. ``The expression of an eye.''