erupt

verb

i-ˈrəpt 

erupted; erupting; erupts

intransitive verb

1

a(1)

: to burst from limits or restraint

(2)

of a tooth : to emerge through the gum

b

: to force out or release suddenly and often violently something (such as lava or steam) that is pent up

c

: to become active or violent especially suddenly : break forth

war could erupt at any moment

the audience erupted in applause

2

: to break out with or as if with a skin eruption

transitive verb

: to force out or release usually suddenly and violently

a volcano erupting lava and ash

eruptible

i-ˈrəp-tə-bəl 

adjective

eruptive

i-ˈrəp-tiv 

adjective

eruptively adverb

Synonyms of erupt

• eject
• expel
• spit
• emit
• spurt
• spew
• disgorge
• belch

Examples of erupt in a Sentence

The volcano erupted with tremendous force.

A bitter dispute has erupted among the members of the team.

Recent Examples on the Web

Three days after a UPS cargo plane crashed and erupted into a deadly ball of fire in an industrial part of Louisville, Kentucky, investigators are piecing together evidence in a slow search for answers. —Jeanine Santucci, USA Today, 7 Nov. 2025

Days after he was elected in September, his to-do list got even longer when the Jimmy Kimmel-ABC crisis erupted, followed by the arrival of AI ingenue Tilly Norwood and the Sora 2 flap involving Bryan Cranston. —Cynthia Littleton, Variety, 6 Nov. 2025

The pageant world has zeroed in on a controversy that erupted at a Miss Universe pre-competition briefing involving pageant executive Nawat Itsaragrisil’s treatment of Miss Mexico, Fátima Bosch. —Julia Teti, Footwear News, 6 Nov. 2025

Multiple firefighters were injured after a burning car reportedly erupted in a massive explosion Wednesday evening in New York City, a police spokesperson told Fox News Digital. —Bonny Chu , Landon Mion , Elizabeth Pritchett, FOXNews.com, 6 Nov. 2025

Word History

Etymology

Latin eruptus, past participle of erumpere to burst forth, from e- + rumpere to break — more at reave

First Known Use

1657, in the meaning defined at intransitive sense 1a(1)

Phrases Containing erupt

• erupt in laughter

Rhymes for erupt

• abrupt
• corrupt
• disrupt
• cupped
• supped
• upped
• interrupt

Kids Definition

erupt

verb

i-ˈrəpt 

1

: to burst forth or cause to burst forth : explode

2

: to break through a surface

teeth erupting from the gum

3

: to break out with or as if with a skin eruption

eruptive

-ˈrəp-tiv 

adjective

Medical Definition

erupt

intransitive verb

i-ˈrəpt 

1

of a tooth : to emerge through the gum

2

: to break out (as with a skin eruption)

eruptive

-tiv 

adjective