one thing is (for) sure

phrase

: it is certain : certainly
One thing is (for) sure, we'll never eat there again.

Examples of one thing is (for) sure in a Sentence

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People online can call you an old hag or too young, but one thing is for sure. — Lea Veloso, StyleCaster, 3 Dec. 2025 But one thing is for sure, the message that Haslem, Spoelstra and others are trying to send Ware through their public challenges is being delivered. — Anthony Chiang, Miami Herald, 18 Nov. 2025 See All Example Sentences for one thing is (for) sure

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“One thing is (for) sure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20thing%20is%20%28for%29%20sure. Accessed 28 Sep. 2026.

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