1. (n.) A running into; hence, an entering into a territory with hostile intention; a temporary invasion; a predatory or harassing inroad; a raid.

2. (n.) Attack; occurrence.

air attack air raid air strike boarding encroachment entrance entrenchment escalade fire raid foray impingement imposition infiltration influx infraction infringement injection inroad insinuation interference interjection interloping interposition interposure interruption intervention intrusion invasion irruption obtrusion overstepping raid razzia saturation raid scaling shuttle raid transgression trespass trespassing unlawful entry usurpation