INVADE

invade, occupy

(verb) march aggressively into another’s territory by military force for the purposes of conquest and occupation; “Hitler invaded Poland on September 1, 1939”

invade

(verb) penetrate or assault, in a harmful or injurious way; “The cancer had invaded her lungs”

invade, overrun, infest

(verb) occupy in large numbers or live on a host; “the Kudzu plant infests much of the South and is spreading to the North”

Source: WordNet® 3.1

Etymology

Verb

invade (third-person singular simple present invades, present participle invading, simple past and past participle invaded)

(transitive) To move into.

(transitive) To enter by force in order to conquer.

(transitive) To infest or overrun.

To attack; to infringe; to encroach on; to violate.

To make an unwelcome or uninvited visit or appearance, usually with an intent to cause trouble or some other unpleasant situation.

Antonyms

• (move into): evade

Anagrams

• evanid

Source: Wiktionary

In*vade", v. t. [imp. & p. p. Invaded; p. pr. & vb. n. Invading.] Etym: [L. invadere, invasum; pref. in- in + vadere to go, akin to E. wade: cf. OF. invader, F. envahir. See Wade.]

1. To go into or upon; to pass within the confines of; to enter; -- used of forcible or rude ingress. [Obs.] Which becomes a body, and doth then invade The state of life, out of the grisly shade. Spenser.

2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain. Such an enemy Is risen to invade us. Milton.

3. To attack; to infringe; to encroach on; to violate; as, the king invaded the rights of the people.

4. To grow or spread over; to affect injuriously and progressively; as, gangrene invades healthy tissue.

Syn.

– To attack; assail; encroach upon. See Attack.

In*vade", v. i.

Definition: To make an invasion. Brougham.

Source: Webster’s Unabridged Dictionary 1913 Edition