invade

verb

1. march aggressively into another's territory by military force for the purposes of conquest and occupation

   verb.competition

   Examples

   Hitler invaded Poland on September 1, 1939.

   Synonyms occupy

   Source: WordNet 3.0

2. to intrude upon, infringe, encroach on, violate

   verb.motion

   Examples

   This new colleague invades my territory.

   Synonyms encroach upon intrude on obtrude upon

   Source: WordNet 3.0

3. occupy in large numbers or live on a host

   verb.stative

   Synonyms infest overrun

   Source: WordNet 3.0

4. penetrate or assault, in a harmful or injurious way

   verb.contact

   Examples

   The cancer had invaded her lungs.

   Source: WordNet 3.0

5. To go into or upon; to pass within the confines of; to enter; -- used of forcible or rude ingress.

   verb

   Source: webster1913

6. To make an invasion.

   verb

   Source: webster1913