- a quad with a square body;
- "since `em quad' is hard to distinguish from `en quad', printers sometimes called it a `mutton quad'"
- a linear unit (1/6 inch) used in printing
- EM n pl. -S the letter M
Scrabble Score: 4em is a valid Scrabble (US) TWL word
em is a valid Scrabble Word in Merriam-Webster MW Dictionary
em is a valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 5em is a valid Words With Friends word