I'll say
idiom
informal
—used to indicate that one completely agrees with something just said
"Isn't it hot today!" "I'll say (it is). It's unbearable!"
Cite this Entry
“I'll say.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/I%27ll%20say. Accessed 31 Oct. 2025.
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Merriam-Webster unabridged
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