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

Amelirad said Mohammadi had participated in anti-government protests that erupted earlier that year when Mahsa Amini died in police custody after being detained for not wearing her headscarf properly. —Arkansas Online, 22 Mar. 2026

Since fighting erupted in late February, commercial traffic through the waterway has effectively stalled, amplifying concerns over energy markets and global supply chains. —Bojan Stojkovski, Interesting Engineering, 22 Mar. 2026

The loudest moment of the night came at the 12-minute mark when Purdue’s bench and its huge contingent of yellow and black clad fans erupted as senior point guard Braden Smith made history with his 1,077th career assist, breaking the 33-year-old NCAA record set in 1993 by Duke’s Bobby Hurley. —Charlotte Observer, 21 Mar. 2026

Munyak's magic moment LIU's last basket of the night was special for the Sharks and their fans, who all erupted in cheers when Eddie Munyak banked in a 3-pointer with 53 seconds left. —CBS News, 21 Mar. 2026

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