verb (used with object)
to enter forcefully as an enemy; go into with hostile intent: Germany invaded Poland in 1939.
to enter like an enemy: Locusts invaded the fields.
to enter as if to take possession
: to invade a neighbor's home.
to enter and affect injuriously or destructively, as disease: viruses that invade the bloodstream.
to intrude upon: to invade the privacy of a family.
to encroach or infringe upon: to invade the rights of citizens.
to permeate: The smell of baking invades the house.
to penetrate; spread into or over: The population boom has caused city dwellers to invade the suburbs.
verb (used without object)
to make an invasion
: troops awaiting the signal to invade.
Origin: 1485–95; Related forms
< Latin invādere,
equivalent to in- in-2
to go; see wade
reinvade, verb (used with object), reinvaded, reinvading.
1, 2. penetrate, attack.