1. onrush - noun
· (military) an offensive against an enemy (using weapons); "the attack began at dawn"
Synonym(s): attack, onslaught, onset
Hypernym(s): operation, military_operation
2. onrush - noun
· a forceful forward rush or flow; "from the bow she stared at the mesmerising onrush of the sea where it split and foamed"; "the explosion interrupted the wild onrush of her thoughts"
Hypernym(s): rush, spate, surge, upsurge
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