say it: in-VAYD
invade is a verb meaning "march aggressively into another's territory by military force for the purposes of conquest and occupation". It carries 4 recorded senses.
to intrude upon, infringe, encroach on, violate
“This new colleague invades my territory”
“The neighbors intrude on your privacy”
penetrate or assault, in a harmful or injurious way
“The cancer had invaded her lungs”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for invade come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.