1. (n.) A bursting in; a sudden, violent rushing into a place; as, irruptions of the sea\.

2. (n.) A sudden and violent inroad, or entrance of invaders; as, the irruptions of the Goths into Italy.

air attack air raid air strike blaze boarding burst convulsion cyclone encroachment entrance entrenchment eruption escalade explosion fire raid fit flare-up foray gale gust hurricane impingement imposition incursion infiltration influx infringement injection inroad insinuation interference interjection interloping interposition interposure interruption intervention intrusion invasion obtrusion outbreak outburst paroxysm raid razzia saturation raid scaling seizure shuttle raid spasm storm tempest tornado trespass trespassing unlawful entry upheaval whirlwind