invasion
♦ in|va|sion /ɪnv'eɪʒən/ (invasions)
1 [N-VAR] usu with supp, oft adj N, N of n
If there is an invasion of a country, a foreign army enters it by force.
...seven years after the Roman invasion of Britain...
2 [N-VAR] oft N of n
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.
...this year's annual invasion of flies, wasps and ants...
3 [N-VAR] usu N of n
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.
Is reading a child's diary always a gross invasion of privacy?pitch in|va|sion (pitch invasions)
[N-COUNT]
If there is a pitch invasion during or after a football, rugby, or cricket match, fans run on to the pitch. (BRIT)
1 [N-VAR] usu with supp, oft adj N, N of n
If there is an invasion of a country, a foreign army enters it by force.
...seven years after the Roman invasion of Britain...
2 [N-VAR] oft N of n
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.
...this year's annual invasion of flies, wasps and ants...
3 [N-VAR] usu N of n
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.
Is reading a child's diary always a gross invasion of privacy?pitch in|va|sion (pitch invasions)
[N-COUNT]
If there is a pitch invasion during or after a football, rugby, or cricket match, fans run on to the pitch. (BRIT)