1 the act or an instance of expressing.
2 a word or phrase expressed.
3 Math. a collection of symbols expressing a quantity.
4 a person's facial appearance or intonation of voice, esp. as indicating feeling.
5 depiction of feeling, movement, etc., in art.
6 conveying of feeling in the performance of a piece of music.
Phrases and idioms:
expression-mark Mus. a sign or word indicating the required manner of performance.
Derivatives:
expressional adj. expressionless adj. expressionlessly adv. expressionlessness n.
Etymology: ME f. OF expression or L expressio f. exprimere: see EXPRESS(1)
Useful english dictionary. 2012.