iota
/aɪˈoʊtə/
noun
- A very small amount; a tiny bit.
- She didn't care one iota about what others thought.
- There is not an iota of truth in that rumor.
- He changed his plans by an iota after hearing the news.
- The ninth letter of the Greek alphabet (Ι, ι).
- The Greek letter iota looks similar to the English letter 'i'.
- The symbol for iota is often used in mathematics and science.
- In ancient Greek, iota could represent a short vowel sound.