Definition as Verb

• penetrate or assault, in a harmful or injurious way
• to intrude upon, infringe, encroach on, violate
• march aggressively into another's territory by military force for the purposes of conquest and occupation
• occupy in large numbers or live on a host

• intrude on, obtrude upon, encroach upon

• occupy

• overrun, infest

• "The cancer had invaded her lungs"

• "This new colleague invades my territory"; "The neighbors intrude on your privacy"

• "Hitler invaded Poland on September 1, 1939"

• "the Kudzu plant infests much of the South and is spreading to the North"

• Invade vs intrude on
• Invade vs obtrude upon
• Invade vs encroach upon
• Invade vs occupy
• Invade vs overrun
• Invade vs infest