- em⇄'em orem (2), pronoun pl.
(Informal.) them.
Ex. Up and at 'em, boys! - em⇄adj. an em long or square.
Ex. an em dash, an em quad. - em⇄em (1), noun, pl.ems,adjective.
- EM⇄EM(no periods),
an abbreviation for the following:
1. East Mark (the mark of former East Germany, or ostmark, officially ?DM East).
2. electromagnetic.
3. electron microscope; electron microscopy.
4. enlisted man or men. - em⇄noun 1. the letter ?M, m.
2. (Printing.)
a. the square of the body of any size of type; a unit for measuring the amount of print in a line, page, or other printed matter. It was originally the portion of a line occupied by the letter ?m.