- 1[singular] (usually used in negative sentences) an extremely small amount There is not one iota of truth (= no truth at all) to the story. I don't think that would help one iota.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2the 9th letter of the Greek alphabet (I, ι)
Check pronunciation: iota