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Definition of classify
classify
/ˈklæsɪfaɪ/
clas · si · fy
Adjective:classified
•Past Simple:classified
•Past Participle:classified
•Present Participle:classifying
classify Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 5k
Syllables
3
classify Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To arrange or organize a group of people or things into classes or categories according to shared qualities or characteristics.
Example
"Biologists classify living organisms into distinct taxonomic groups based on their evolutionary history."
2
To designate documents or information as officially secret and accessible only to authorized individuals.
Example
"The agency decided to classify the diplomatic cables to protect national security."
Synonyms
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View all antonyms for classify• Rhymes for classify
• Nearby Words
Word Origin & Etymology
Coined in the late 18th century from the noun 'class' (from Latin 'classis', meaning a division of the Roman people) and the verb-forming suffix '-ify' (from Latin '-ficare', meaning to make).
Cite this Entry
Wordmom. (2026). Definition of Classify. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/classify