180 entries under noun topic. ×

7
onset(charge, attack, strike, offensive)
7
transgression(attack, breach, assault, offense)
7
trespass(appearance, advance, attack, assault)
6
blitzkrieg(charge, attack, strike, offensive)
6
breach(attack, encroachment)
6
impingement(advance, interruption, violation, interference)
6
infraction(attack, breach, assault, offense)
6
storming(charge, attack, strike, offensive)
5
penetration(act, appearance, attack, rush)
5
sally(attack, maneuver, raid, military)
4
combat
4
entrenchment(attack, encroachment)
4
influx(rush, flow, ingress)
4
intervention(charge, attack, strike, offensive)
4
maraud(attack, raid, military, mission)
4
plague(disease, wave, outbreak, swarm)
4
usurpation(attack, encroachment)
3
barrage(charge, attack, strike, offensive)
3
blitz(charge, attack, strike, offensive)
3
bombardment
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APASmart Define. (2015). invasion thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/invasion/thesaurus/synonyms
ChicagoSmart Define. 2015. "invasion thesaurus" https://smartdefine.org/invasion/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, invasion thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/invasion/thesaurus/synonyms>.
MLASmart Define. "invasion thesaurus" 17 July 2015. Web. 30 September 2026. <https://smartdefine.org/invasion/thesaurus/synonyms>