emit

verb

ē-ˈmit 

emitted; emitting

transitive verb

1

a

: to throw or give off or out

emit light/heat

b

: to send out : eject

2

a

: to issue with authority

especially : to put (something, such as money) into circulation

b

obsolete : publish

3

: to give utterance or voice to

emitted a groan

emitter noun

Synonyms

• radiate
• cast
• emanate
• release

Examples of emit in a Sentence

The telescope can detect light emitted by distant galaxies.

chimneys emitting thick, black smoke

The brakes emitted a loud squeal.

Recent Examples on the Web

If Pauli’s theory of neutrinos were correct, then each of these sets of reactions, both fission and fusion, would emit neutrinos each with a substantial amount of energy (in the ~MeV, or mega-electron-volt, range) to them. —Big Think, 28 Oct. 2025

Only a small fraction—less than 10 percent—of an earthquake’s energy is emitted as seismic waves. —Amanda Castro, MSNBC Newsweek, 27 Oct. 2025

The former instantly adds a second layer of security against unwanted guests, and the latter emits an ultra-loud alarm while acting like a door stop wedge, scaring off any stranger who tries to enter your room. —Amelia McBride, Travel + Leisure, 26 Oct. 2025

On one end, oil refining emits more air pollutants than any other process in the oil industry. —Sarah Henry, AZCentral.com, 25 Oct. 2025

Word History

Etymology

Latin emittere to send out, from e- + mittere to send

First Known Use

1598, in the meaning defined at sense 1a

Phrases Containing emit

• re-emit

Rhymes for emit

• acquit
• admit
• amrit
• armpit
• backlit
• befit
• cockpit
• commit
• dalit
• dendrite
• illite
• misfit

Kids Definition

emit

verb

ē-ˈmit 

emitted; emitting

1

a

: to throw or give off or out

emit light

b

: to send out : eject

2

: utter entry 2 sense 1

emit a groan

Etymology

from Latin emittere "to send out," from e-, ex- "out, forth" and mittere "to send, throw" — related to dismiss, message, missile, transmit