Round-up
Round-up , noun
1.
The act of collecting or gathering together scattered cattle by riding around them and driving them in. [Western United States]
2.
A rounding up, or upward curvature or convexity, as in the deck of a vessel.
2.
A gathering in of scattered persons or things; as, a round-up of criminals. [Colloquial, United States]
Round up , transitive verb
to collect or gather together scattered animals, persons, or things.
Round up the usual suspects.