invasion
/ɪnˈveɪʒən/noun
1- an instance of invading a country or region with an armed force侵略, 入侵：
the Soviet invasion of Czechoslovakia
苏联对捷克斯洛伐克的入侵
mass noun in 1546 England had to be defended from invasion.1546年英格兰不得不抵抗外来侵略。
1.1
- an incursion by a large number of people or things into a place or sphere of activity拥入, 涌入, 大批进入, 侵入：
there was a brief pitch invasion when Sunderland scored.
森德兰队得分后, 人群一时涌入了球场。
1.2
- an unwelcome intrusion into another's domain侵犯, 侵害, 干预, 妨碍：
random drug testing of employees is an unwarranted invasion of privacy.
随意对员工进行毒品检测是对个人隐私的肆意侵犯。
词源
late Middle English: from late Latin invasio（n-）， from the verb invadere （see INVADE）.