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verb B1 Intermediate Uncommon

classify

KLAS-ih-feye
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Classify (verb) means to sort into groups or categories based on shared traits. Example: “Scientists classify sharks as fish, not mammals.”

verb
1
To sort into groups or categories based on shared traits.
"Scientists classify sharks as fish, not mammals."
2
To officially mark information as secret.
"The government chose to classify the report."

How to use classify

Learner’s notes

In plain EnglishTo sort something into a category, or to officially declare information secret.

Common pairings
classify as classify information
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Word forms

Third person singular
classifies
Past tense
classified
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Fill the gap

Can you complete this real example?

Scientists _____ sharks as fish, not mammals.

Etymology

From French classifier. By surface analysis, class + -ify.

Origin: French

Related words

Rhymes for classify

See all rhymes for classify →

Frequently asked questions

What does “classify” mean?
The word “classify” means to sort into groups or categories based on shared traits. In plain terms, to sort something into a category, or to officially declare information secret.
How do you pronounce “classify”?
“Classify” is pronounced KLAS-ih-feye (/ˈklæs.əˌfaɪ/ in IPA).
How do you use “classify” in a sentence?
Here is “classify” used in a sentence: “Scientists classify sharks as fish, not mammals.”
What is another word for “classify”?
Words with a similar meaning to “classify” include brand, cast, class, categorize, compartmentalise and distribute.
What is the opposite of “classify”?
The opposite of “classify” — its antonyms — is declassify.
What part of speech is “classify”?
“Classify” is a verb.
Is “classify” a common word?
“Classify” is an uncommon word in modern English, usually learned at around the B1 level.
How many meanings does “classify” have?
“Classify” has 2 distinct senses listed in this dictionary. The most common is: to sort into groups or categories based on shared traits.

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etymology from Wiktionary