expression

a word or phrase that particular people use in particular situations

“pardon the expression”

the communication (in speech or writing) of your beliefs or opinions

“expressions of good will”

a group of symbols that make a mathematical statement

the feelings expressed on a person's face

“a sad expression”

the style of expressing yourself

“his manner of expression showed how much he cared”

expression without words

“tears are an expression of grief”

a group of words that form a constituent of a sentence and are considered as a single unit

the process of expressing a gene

the act of forcing something out by squeezing or pressing

“the expression of milk from her breast”