classify

verb

clas·​si·​fy ˈkla-sə-ˌfī 

classified; classifying

transitive verb

1

: to arrange in classes (see class entry 1 sense 3)

classifying books according to subject matter

2

: to consider (someone or something) as belonging to a particular group

The movie is classified as a comedy.

The vehicle is classified as a truck.

classifiable

ˌkla-sə-ˈfī-ə-bəl 

adjective

Synonyms of classify

• rank
• distinguish
• categorize
• relegate
• group
• distribute
• type
• grade
• identify
• sort
• separate

Examples of classify in a Sentence

Students will be learning about the ways scientists classify animals.

The online system can classify books by subject.

Recent Examples on the Web

The department does not classify its calls by snake type, the spokesperson said. — Haley Parsley, Sacbee.com, 5 Sep. 2026

The petition sought to classify data centers as industrial nuisances, arguing that a ban would protect residents’ property and preserve city resources, such as water and electricity. — Cuyler Dunn, Kansas City Star, 4 Sep. 2026

Roughly two dozen countries have statutes that classify maternal infanticide as less culpable than ordinary murder; the United States recognizes no such distinction, forcing cases like Clancy’s into the contentious framework of the insanity defense. — Eren Orbey, New Yorker, 4 Sep. 2026

That result allows the cell to be classified as all-solid-state under the Chinese standard. — Neetika Walter, Interesting Engineering, 3 Sep. 2026

Word History

Etymology

probably in part a back-formation from classification, in part from class entry 1 + -ify

First Known Use

1776, in the meaning defined at sense 1

Rhymes for classify

• abscissae
• adonai
• alibi
• alkali
• alumni
• amoebae
• amplify
• annuli
• beautify
• brachii
• butterfly
• calculi

Kids Definition

classify

verb

clas·​si·​fy ˈklas-ə-ˌfī 

classified; classifying

: to arrange in or assign to classes

classify books by subjects

classifiable

-ˌfī-ə-bəl 

adjective

classifier

-ˌfī(-ə)r

noun

Medical Definition

classify

transitive verb

clas·​si·​fy ˈklas-ə-ˌfī 

classified; classifying

: to arrange in classes that have systematic relations usually founded on common properties

how would you classify these animals