round up verb Etymology:round (VI) transitive verb 1.: to haul up (as slack rope through its leading block or a tackle by its fall) 2. a.: to collect (cattle) by riding around them and driving them in b.: to gather in or bring together (scattered persons or things) < police rounded up members of a gambling ring > < rounds up the news in a nightly 11 o'clock broadcast > intransitive verb : to collect in a group