IPA: /ˈɪnˌrʌʃ/
KK: /ˈɪnˌrʌʃ/
A sudden and large movement of people or things entering a place.
There was an inrush of fans when the concert started.
Inrush → It is formed from "in-" (meaning into) and "rush" (from Old English "ryscan", meaning to move quickly). The word describes a quick movement into a place or situation.
Think of something moving quickly 'into' a space — 'in-' means into, and 'rush' means to move quickly.