classify

verb

clas·​si·​fy ˈkla-sə-ˌfī How to pronounce classify (audio)
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 adjective

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These would be plants that are classified as natives. Chris McKeown, Cincinnati Enquirer, 6 Sep. 2025 While the majority of those labor force gains were from those classified as employed, the increase in those unemployed was largely attributed to those who re-entered the labor market and are searching for jobs. Alicia Wallace, CNN Money, 5 Sep. 2025 The tornado would be classified at the top of the Fujita Scale — an F5 — with gusts of more than 200 mph. Nathan Pilling, Kansas City Star, 5 Sep. 2025 The star, classified as IRAS 04302+2247, or IRAS 04302, is a protostar, with its disk measuring at around 40 billion miles (65 billion km) wide. Kenna Hughes-Castleberry, Space.com, 4 Sep. 2025 See All Example Sentences for classify

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

Time Traveler
The first known use of classify was in 1776

Browse Nearby Words

Cite this Entry

“Classify.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/classify. Accessed 9 Sep. 2025.

Kids Definition

classify

verb
clas·​si·​fy ˈklas-ə-ˌfī How to pronounce classify (audio)
classified; classifying
: to arrange in or assign to classes
classify books by subjects
classifiable adjective
classifier
-ˌfī(-ə)r
noun

Medical Definition

classify

transitive verb
clas·​si·​fy ˈklas-ə-ˌfī How to pronounce classify (audio)
classified; classifying
: to arrange in classes that have systematic relations usually founded on common properties
how would you classify these animals

More from Merriam-Webster on classify

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