round-up

from The Century Dictionary.

• noun A rounding up; the forming of upward curves; curvature upward.
• noun In grazing regions, the herding or driving together of all the cattle on a range or ranch, for inspection, branding, sorting, etc.; also, the beating up or gathering of any animals, as those of the chase.
• noun A rounding off or finishing, as of an arrangement or undertaking; a bringing round to settlement or completion.
• noun In ship-building, the convexity of a deck; crown; camber.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb to collect or gather together scattered animals, persons, or things.
• noun Western U.S. The act of collecting or gathering together scattered cattle by riding around them and driving them in.
• noun A rounding up, or upward curvature or convexity, as in the deck of a vessel.
• noun Colloq., U. S. A gathering in of scattered persons or things.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb seek out and bring together
• noun the activity of gathering livestock together so that they can be counted or branded or sold
• noun the systematic gathering up of suspects by the police
• noun a summary list; as in e.g.