Invasion — synonyms, definition

1. invasion (Noun)

advance assault attack charge combat encounter encroachment entrance entrenchment foray incision incursion infringement inroad intrusion offensive onset onslaught outbreak penetration • • •

invasion (Noun) — The act of invading; the act of an army that invades for conquest or plunder.

invasion (Noun) — Any entry into an area not previously occupied. ex. "an invasion of locusts"

invasion (Noun) — (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body. ex. "the tumour's invasion of surrounding structures"

entering entrance incursion penetration spread spreading inroad