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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.

The suit alleged the turbines emit pollution and hazardous chemicals that have been linked to increases in asthma, respiratory diseases, heart problems and certain cancers.

From The Wall Street Journal • Apr. 14, 2026

Credo may pay 3.21 million additional shares if certain financial milestones are reached.

From Barron's • Apr. 14, 2026

Just taking notes of how I want to incorporate certain things in my show or how I want to move, or the things I might need, it’s all been very rewarding.

From Los Angeles Times • Apr. 14, 2026

For instance, a self-employed taxpayer with a certain type of IRA can stretch the window for retirement contributions to Oct.

From MarketWatch • Apr. 14, 2026

She’d always tell us that we were only going to buy a certain number of tickets, and once they were gone, that was it.

From "Red Flags and Butterflies" by Sheryl Azzam




Vocabulary lists containing certain