Synonyms

for certain

Idioms

Also, for sure. Without doubt. For example, I can't tell for certain if this is the right color, or I know for sure that she has a new car. The first term dates from the early 1300s. The variant, dating from the late 1500s, is also used colloquially to express agreement or assert the truth of a statement, as in Mary is really bossy.—That's for sure, or Are you coming to the party?—For sure I am.

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.

In comparison, NHS treatment is subsidised by the UK governments - meaning for the public it is free for certain groups or capped at one of three price bands for others.

From BBC • Jun. 11, 2026

Users give prior consent for certain health-related recordings, such as those related to sleep, mood, meals and pain levels, to be shared with their welfare workers.

From Barron's • Jun. 11, 2026

In recent years, several observational studies have suggested that GLP-1 drugs may be associated with lower risks for certain cancers or improved outcomes among cancer survivors.

From Science Daily • Jun. 6, 2026

Is there a minimum amount you should be getting for certain items?

From MarketWatch • May 28, 2026

It was shortly after the measles epidemic that Dad started applying motion study to surgery to try to reduce the time required for certain operations.

From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

for certain

Example Sentences

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