Here you will find one or more explanations in English for the word Em.
Also in the bottom left of the page several parts of wikipedia pages related to the word Em and, of course, Em synonyms and on the right images related to the word Em.
Em
Em Em, n. (Print.)
The portion of a line formerly occupied by the letter m, then
a square type, used as a unit by which to measure the amount
of printed matter on a page; the square of the body of a
type.
Meaning of Em from wikipedia
