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certain

/səˈtɛrn/ adjective · British & US
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What does certain mean?

adjective

Having a basis in fact; definitely existing or happening. Used to indicate a high degree of probability or certainty.

Example

"I'm certain that I left my keys on the kitchen counter."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

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Synonyms for certain

Antonyms of certain

Rhymes with certain