1. (noun) expression, look, aspect, facial expression, face
the feelings expressed on a person's face
"a sad expression"; "a look of triumph"; "an angry face"
2. (noun) expression, manifestation, reflection, reflexion
expression without words
"tears are an expression of grief"; "the pulse is a reflection of the heart's condition"
3. (noun) expression, verbal expression, verbalism
the communication (in speech or writing) of your beliefs or opinions
"expressions of good will"; "he helped me find verbal expression for my ideas"; "the idea was immediate but the verbalism took hours"
4. (noun) saying, expression, locution
a word or phrase that particular people use in particular situations
"pardon the expression"
5. (noun) formulation, expression
the style of expressing yourself
"he suggested a better formulation"; "his manner of expression showed how much he cared"
6. (noun) formula, expression
a group of symbols that make a mathematical statement
7. (noun) expression
(genetics) the process of expressing a gene
8. (noun) construction, grammatical construction, expression
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"
9. (noun) expression
the act of forcing something out by squeezing or pressing
"the expression of milk from her breast"
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