incursion
(noun)
noun
1. the act of entering some territory or domain (often in large numbers)
- the incursion of television into the American living room
Definition categories: act, entering, entrance, entry, incoming, ingress
2. an attack that penetrates into enemy territory
Similar word(s): penetration
Definition categories: act, attack, onrush, onset, onslaught
3. the mistake of incurring liability or blame