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Definitions

certain

[sur-tn] / ˈsɜr tn /






Usage

What are other ways to say certain?

Certain, one of a handful of adjectives indicating full belief and trust that something is true, suggests that there are definite reasons that have freed one from doubt. Confident emphasizes the strength of the belief or the certainty of expectation felt. Positive implies emphatic certainty, which may even become overconfidence or dogmatism. Sure, the simplest and most general term, expresses mere absence of doubt. 


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Raman countered that, as a council member, she only has control over certain issues.

From Los Angeles Times • Apr. 6, 2026

Brands in certain sectors are particularly eager to put consumers at ease.

From The Wall Street Journal • Apr. 6, 2026

Despite the enormous variety of languages spoken around the world, certain grammatical patterns keep showing up.

From Science Daily • Apr. 5, 2026

But it’s gotten to the point where playing certain college sports can be as lucrative – if not more so – than being a professional athlete.

From Salon • Apr. 5, 2026

Believers hissed, certain that the former celebrity medium was being paid to betray the spirits.

From "American Spirits" by Barb Rosenstock