名词

1. 武装入侵;侵略
If there is an invasion of a country, a foreign army enters it by force.

2. (令人不快的或难以对付的人或事物的)大批进入，涌入
If you refer to the arrival of a large number of people or things as an invasion, you are emphasizing that they are unpleasant or difficult to deal with.

3. 侵扰;干扰
If you describe an action as an invasion, you disapprove of it because it affects someone or something in a way that is not wanted.

1. the act of invading
the act of an army that invades for conquest or plunder

2. (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body

e.g. the tumor's invasion of surrounding structures

3. any entry into an area not previously occupied

e.g. an invasion of tourists
an invasion of locusts

Synonym: encroachmentintrusion