that's a big if

idiom

used to say that something is not likely
They could win if everyone plays his best, but that's a big if.

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By Melissa Locker and Chris Wilson April 6, 2024 5:50 AM EDT If the weather cooperates—that's a big if—Chicago residents should see a partial eclipse between 12:51 p.m. and 3:22 p.m., reaching peak totality (around 94%) at 2:07 p.m. Melissa Locker, TIME, 6 Apr. 2024 If the weather cooperates—that's a big if—Chicago residents should see a partial eclipse between 12:51 p.m. and 3:22 p.m., reaching peak totality (around 94%) at 2:07 p.m. Melissa Locker, TIME, 6 Apr. 2024

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Cite this Entry

“That's a big if.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/that%27s%20a%20big%20if. Accessed 23 Dec. 2024.

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