en1
/ɛn
/noun Printing
A unit of measurement equal to half an em and approximately the average width of typeset characters, used especially for estimating the total amount of space a text will require.
Origin
Late 18th century: the letter N represented as a word, since it is approximately this width.
Rhymes
en-2
/ɪn/ /ɛn/(also em-)
prefix
Within; inside: empathy energy enthusiasm
Origin
From Greek.