Intermediate (B1)
IPA: /ɪˈrʌpʃən/
KK: /ɪˈrʌpʃən/
Definition
A sudden and often violent entry or invasion, especially by a large number of animals or people.
Example
The irruption of the deer into the town surprised the residents.
Conversation

Did you hear about the sudden irruption of rabbits in the park?

Yeah, I saw them hopping around everywhere last weekend!

It's crazy how quickly their numbers can increase like that.

I know, right? It feels like they just invaded the place!
Synonyms & Antonyms
Synonyms
invasion
intrusion
outburst
Antonyms
withdrawal
retreat
cessation
Root Explanation
Irruption → It is formed from "in-" (meaning into) and "rumpere" (meaning to break). The word describes the act of breaking into or bursting in suddenly.
Memory Tip
Think of something 'breaking in' ('rumpere') 'into' a place ('in-') — that's why irruption means a sudden invasion or entry.
Visually Confused Words
inruption
ruption
interruption
incorruption
proruption
preruption
disruption
corruption