IPA: /ɪˈrʌpt/
KK: /ɪˈrʌpt/
To suddenly break in or enter forcefully.
The crowd began to irrupt into the stadium as the gates opened.
Past: irrupted
Past Participle: irrupted
Irrupt is formed from "in-" (meaning into) and "rumpere" (meaning to break). The word describes the act of breaking into or bursting in suddenly.
Think of something 'breaking in' ('rumpere') 'into' a place ('in-') — that's why irrupt means to burst in suddenly.