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invade

[in-veyd] /ɪnˈveɪd/
verb (used with object), invaded, invading.
1.
to enter forcefully as an enemy; go into with hostile intent:
Germany invaded Poland in 1939.
2.
to enter like an enemy:
Locusts invaded the fields.
3.
to enter as if to take possession:
to invade a neighbor's home.
4.
to enter and affect injuriously or destructively, as disease:
viruses that invade the bloodstream.
5.
to intrude upon:
to invade the privacy of a family.
6.
to encroach or infringe upon:
to invade the rights of citizens.
7.
to permeate:
The smell of baking invades the house.
8.
to penetrate; spread into or over:
The population boom has caused city dwellers to invade the suburbs.
verb (used without object), invaded, invading.
9.
to make an invasion:
troops awaiting the signal to invade.
Origin
1485-1495
1485-95; < Latin invādere, equivalent to in- in-2 + vādere to go; see wade
Related forms
invadable, adjective
invader, noun
quasi-invaded, adjective
reinvade, verb (used with object), reinvaded, reinvading.
uninvadable, adjective
uninvaded, adjective
Synonyms
1, 2. penetrate, attack.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for invade
  • They are definitely aware when you can see them and are less likely to invade your space when they know they have been seen.
  • Voracious, venomous lionfish are the first exotic species to invade coral reefs.
  • If humans didn't make it so easy for them, invasive fire ants wouldn't invade.
  • After multiplying, the microbes break out of the cell and go on to invade other cells, repeating the process.
  • They eat natural bark and stems, and have been known to invade campgrounds and chew on canoe paddles.
  • In addition to becoming immortal, cancer cells invade the surrounding tissue, rendering it nonfunctional.
  • And morning light seems to invade the still night village.
  • Somebody should really invade that country and prevent that sort of thing.
  • Consider, though, what it means to invade that technological space.
  • Then the aliens come back with a bunch of their friends and invade, attacking five of the world's largest cities.
British Dictionary definitions for invade

invade

/ɪnˈveɪd/
verb
1.
to enter (a country, territory, etc) by military force
2.
(transitive) to occupy in large numbers; overrun; infest
3.
(transitive) to trespass or encroach upon (privacy, etc)
4.
(transitive) to enter and spread throughout, esp harmfully; pervade
5.
(of plants, esp weeds) to become established in (a place to which they are not native)
Derived Forms
invadable, adjective
invader, noun
Word Origin
C15: from Latin invādere, from vādere to go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for invade
v.

late 15c., from Middle French invader "to invade," and directly from Latin invadere "to go into, enter upon; assail, assault, attack" (see invasion). Related: invaded; invading.

Online Etymology Dictionary, © 2010 Douglas Harper
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