inroad

English Thesaurus

1. an encroachment or intrusion (noun.act)

hypernym	:	encroachment, intrusion, trespass, usurpation, violation,
definition	:	entry to another's property without right or permission (noun.act)

2. an invasion or hostile attack (noun.act)

hypernym	:	invasion,
definition	:	the act of invading; the act of an army that invades for conquest or plunder (noun.act)