IPA: /ˈɒnˌrʌʃɪŋ/
KK: /ˈɑnˌrʌʃɪŋ/
Moving forward quickly or in a forceful way, often used to describe something that is coming towards you rapidly.
The onrushing waves crashed against the shore with great power.
Onrushing → It is formed from "on-" (meaning in the direction of) and "rush" (from Old English *ryscan*, meaning to move quickly). The word "onrushing" describes the act of moving quickly in a specific direction.
Imagine something moving quickly 'in the direction of' ('on-') — that's what onrushing means.