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

A bad credit score hurts your ability to take out a loan, rent housing and even qualify for certain jobs.

From MarketWatch ● Jul. 17, 2026

But the gains are uneven, and significant challenges remain for certain types of events.

From Barron's ● Jul. 16, 2026

"If you can trick gold into dissociating oxygen, it can actually become a very effective catalyst for certain reactions," Montemore said.

From Science Daily ● Jul. 12, 2026

"She tried to see the best in him, and maybe ignored certain things for certain reasons," said Jazz.

From BBC ● Jul. 10, 2026

It’s your grandchild, which is more than any other grandparents it’s got can say for certain.

From "The Sound and the Fury" by William Faulkner

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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