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Word of the Day Wednesday, June 10, 2026

em

/ɛm/ abbreviation · British & US
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What does em mean?

abbreviation

A unit of measurement equal to one-tenth of a centimeter or one-hundredth of a meter. In computing, a unit of measurement equal to one-sixty-fourth of a byte.

Example

"The width of the paper is 10 em."

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

Synonyms for em

Rhymes with em

Etymologically related