inroad
nounAn advance, especially at another’s expense; an encroachment.
nounA reduction or diminishment.
nounA hostile invasion; a raid.
To make an inroad into; invade.
To make an inroad; encroach; depredate.
nounA predatory or hostile incursion; a raid by public enemies; a temporary or desultory invasion.
nounForcible entrance; powerful or sudden influx or incursion; forcible or insidious encroachment.
nounThe entrance of an enemy into a country with purposes of hostility; a sudden or desultory incursion or invasion; raid; encroachment.
transitive verbTo make an inroad into; to invade.
nounan