To Swoop

1. (intransitive) To fly or glide downwards suddenly; to plunge (in the air) or nosedive.
2. (intransitive) To move swiftly, as if with a sweeping movement, especially to attack something.
3. (transitive) To fall on at once and seize; to catch while on the wing.
4. (transitive) To seize; to catch up; to take with a sweep.
5. (intransitive) To pass with pomp; to sweep.
6. (Britain, prison slang) To search the ground for discarded cigarette butts that can be made into new cigarettes.