Definition of invasion noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ɪnˈveɪʒn//
    ; NAmE NAmE//ɪnˈveɪʒn//
    [countable, uncountable] Conflict
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  1. 1the act of an army entering another country by force in order to take control of it the German invasion of Poland in 1939 the threat of invasion an invasion force/fleet CollocationsWar and peaceStarting a war declare/​make/​wage war (on somebody/​something) go to war (against/​with somebody) cause/​spark/​provoke/​foment/​quell unrest incite/​lead/​crush/​suppress a revolt/​rebellion launch/​mount/​carry out a surprise/​terrorist attack prevent/​halt/​represent an escalation of the conflict be torn apart by/​be on the brink of civil war enter/​invade/​occupy somebody’s territory lead/​launch/​resist/​repel an invasionMilitary operations adopt/​develop/​implement/​pursue a military strategy carry out/​execute/​perform military operations/​manoeuvres/(especially US English) maneuvers send/​deploy/​station/​pull back/​withdraw troops go on/​fly/​carry out a reconnaissance/​rescue mission train/​equip/​deploy army/​military/​combat units lead/​launch/​conduct a raid/​a surprise attack/​an (air/​airborne/​amphibious) assault (on somebody) employ/​use guerrilla tactics conduct/​wage biological/​guerrilla warfare fight/​crush/​defeat the rebels/​the insurgency suffer/​inflict a crushing defeat achieve/​win a decisive victory halt/​stop the British/​German/​Russian advance order/​force a retreatFighting join/​serve in the army/​navy/​air force be/​go/​remain/​serve on active duty serve/​complete/​return from a tour of duty be sent to the front (line) attack/​strike/​engage/​defeat/​kill/​destroy the enemy see/​report/​be engaged in heavy fighting call for/​be met with armed resistance come under heavy/​machine-gun/​mortar fire fire a machine-gun/​mortar shells/​rockets (at somebody/​something) shoot a rifle/​a pistol/​bullets/​missiles launch/​fire a cruise/​ballistic/​anti-tank missile use biological/​chemical/​nuclear weapons inflict/​suffer/​sustain heavy losses/​casualties be hit/​killed by enemy/​friendly/​artillery fire become/​be held as a prisoner of warCivilians in war harm/​kill/​target/​protect innocent/​unarmed civilians cause/​avoid/​limit/​minimize civilian casualties/​collateral damage impose/​enforce/​lift a curfew engage in/​be a victim of ethnic cleansing be sent to an internment/​a concentration camp accept/​house/​resettle refugees fleeing from war fear/​threaten military/​violent reprisals commit/​be accused of war crimes/​crimes against humanity/​genocideMaking peace make/​bring/​win/​achieve/​maintain/​promote peace call for/​negotiate/​broker/​declare a ceasefire/​a temporary truce sign a ceasefire agreement call for/​bring/​put an end to hostilities demand/​negotiate/​accept the surrender of somebody/​something establish/​send (in) a peacekeeping force negotiate/​conclude/​ratify/​sign/​accept/​reject/​break/​violate a peace treaty See related entries: Conflict
  2. 2the fact of a large number of people or things arriving somewhere, especially people or things that are disturbing or unpleasant the annual tourist invasion Farmers are struggling to cope with an invasion of slugs.
  3. 3an act or a process that affects somebody/something in a way that is not welcome The actress described the photographs of her as an invasion of privacy.
  4. see also invade
    Word Originlate Middle English: from late Latin invasio(n-), from the verb invadere, from in- ‘into’ + vadere ‘go’.Extra examples Having all those photographers in the house was a terrible invasion of privacy. Latest reports are of a full-scale military invasion. Robberies and home invasions are grim facts of daily life. We cannot accept the unprovoked invasion of a sovereign nation. She left Czechoslovakia after the Russian invasion in 1968. The UN resolution condemned the invasion of the country. The actress described the photographs as an invasion of privacy. The invasion force comprised 3 000–5 000 heavily armed troops.
See the Oxford Advanced American Dictionary entry: invasion

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