EN
WordNet
noun
(1) Half the width of an em
WiktionaryText
Etymology 1
The name of the letter comes from . Typographic sense 1793.
Noun
- The name of the letter N, n.
- The ems and ens at the beginnings and ends.
- A unit of measurement equal to half of an em (half of the height of the type in use).
Preposition
- Used in various phrases borrowed from French (see "Derived terms" below).