Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun invasion

3 senses of invasion

Sense 1
invasion -- (the act of invading; the act of an army that invades for conquest or plunder)
       => penetration, incursion -- (an attack that penetrates into enemy territory)

Sense 2
invasion, encroachment, intrusion -- (any entry into an area not previously occupied; "an invasion of tourists"; "an invasion of locusts")
       => entrance, entering -- (a movement into or inward)

Sense 3
invasion -- ((pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body; "the tumor's invasion of surrounding structures")
       => spread, spreading -- (process or result of distributing or extending over a wide expanse of space)