iota

noun io·ta \ ī-ˈō-tə \
Updated on: 9 Nov 2017

Definition of iota

1 : the 9th letter of the Greek alphabet — see Alphabet Table
2 : an infinitesimal amount : jot
  • did not show an iota of interest

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Examples of iota in a Sentence

  1. there's not an iota of doubt regarding the defendant's guilt

Recent Examples of iota from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iota.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

iota and Jot

The words iota and jot share a lot more than just a common meaning—both ultimately derive from the same word. When Latin scholars transcribed the Greek name of the ninth letter of the Greek alphabet, they spelled it as either iota or jota (the letters i and j were simply variants of each other), and these spellings eventually passed into English as iota and jot. Since the Greek letter iota is the smallest letter of its alphabet, both words eventually came to be used in reference to very small things.

Origin and Etymology of iota

Latin, from Greek iōta, of Semitic origin; akin to Hebrew yōdh yod

Other Alphabet Terms


IOTA Defined for English Language Learners

iota

noun

Definition of iota for English Language Learners

  • : a very small amount


IOTA Defined for Kids

iota

noun io·ta \ ī-ˈō-tə \

Definition of iota for Students

: a tiny amount
  • I don't care an iota.


Seen and Heard

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of very fine texture or delicate form

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