em

noun4

1. •
   The name of the Latin script letter M/m.

   • It said, in a whispering, buzzing voice, "Gee-you-ess-ess-ay-dash-em-ee-ar-ar-wye-dash-em-eye-en-gee-oh-dash-pee-eye-pee-dash-pee-ee-ar-ar-wye-dash-pee-eye-en-gee-oh." — 2004
2. •
   A unit of measurement equal to the height of the type in use.

   • Insert here a one-em dash or long dash.
3. •
   A relative unit of sizing defined in terms of the font size.
4. •
   The name of the letter м/М in Cyrillic alphabets.

exclamation1

1. •
   (Ireland, Scotland) a form of hesitant speech, or an expression of uncertainty

   • She was abused by, em... David, I think. That was his name, he's a real em... what's the word, narcissist. You should really stay away from him.

pronoun1

1. •
   (nonstandard, rare) A gender-neutral third-person singular object pronoun, the objective case of ey or e, equivalent to the singular them and coordinate with him and her.

   • If the author uses such notation, it should be up to Em to indicate Eir intentions clearly, but there’s no harm checking first. — 1986

adjective1

1. •
   Abbreviation of electromagnetic.

   • Secondary drone got EM spectrum on the kill. — 1992

noun10

1. •
   Initialism of emerging market.
2. •
   Initialism of emergency medicine.
3. •
   Initialism of electromagnetism.
4. •
   Abbreviation of electron microscope.
5. •
   Abbreviation of electron microscopy.
6. •
   Initialism of electronic monitoring.
7. •
   Initialism of enlisted man.
8. •
   Initialism of energy management.
9. •
   Initialism of English medium.
10. •
    Initialism of effective microorganism.