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

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for certain

The proposed bank charter “would establish a federal supervisory framework for certain custody and related activities currently offered by Block,” the company said.

From The Wall Street Journal ● Sep. 8, 2026

But could he say for certain he will make the trip?

From Los Angeles Times ● Sep. 8, 2026

“These three very big things to contend with — they’re perfectly placed for yields to rise and for certain currencies to weaken.”

From MarketWatch ● Sep. 4, 2026

Jackson flags this exact relationship in her dissent, as the court’s new ruling Monday “lets another shoe drop in the Kafkaesque nightmare that our precedents have been steadily creating for certain plaintiffs.”

From Slate ● Aug. 25, 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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