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Word of the Day Tuesday, June 9, 2026

nan

/næn/ noun · British & US
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What does nan mean?

noun

A unit of measurement in the International System of Units, equal to one billionth of a gram. A prefix used in scientific notation to denote a very small quantity.

Example

"The scientist used nanotechnology to create a new material with unique properties."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for nan

Antonyms of nan

Rhymes with nan

Etymologically related