WordReference Random House Unabridged Dictionary of American English © 2026
clas•si•fi•er
(klas′ə fī′ər),USA pronunciation n.
- a person or thing that classifies.
- a device for separating solids of different characteristics by controlled rates of settling.
- Grammar(in Chinese, Japanese, and other languages) a word or morpheme that corresponds to a semantic class of nouns and regularly accompanies any noun of that class in certain syntactic constructions, such as those of numeration.
- classify + -er1 1810–20
'classifier' also found in these entries (note: many are not synonyms or translations):