: a very small amount
—usually used in negative statements
That doesn't bother me one iota. [=that doesn't bother me at all]
There isn't an iota of truth in what he says.
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“Iota.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/iota. Accessed 30 Oct. 2026.
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