know for certain

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.

Whatever the case, we know for certain that the bigger the games are, the higher the financial and personal stakes.

From Salon • Feb. 8, 2026

Forecasting snow in the UK is notoriously difficult, and it is still too early to know for certain whether we will see a white Christmas in 2025.

From BBC • Dec. 12, 2025

We can’t know for certain if the Values Bridge data reveals a slow trend away from the centrality of family in the American psyche or a sudden drop, or why in either case.

From The Wall Street Journal • Nov. 20, 2025

A lot of people are fine and they don’t have any complications, but I don’t know for certain what the outcome will be for me.

From MarketWatch • Oct. 9, 2025

“I don’t know for certain who it was,” he explained when he continued.

From "Gathering Blue" by Lois Lowry