Synonyms and Antonyms for certify | Synonym.com

Synonyms and Antonyms for certify

1. certify (v.)

provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes

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2. certify (v.)

guarantee payment on; of checks

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4. certify (v.)

guarantee as meeting a certain standard

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5. certify (v.)

declare legally insane

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