Definition of to round up in English English dictionary
To round (a number) to the smallest integer that is not less than it, or to some other greater value, especially a whole number of hundreds, thousands, etc
If the police or army round up a number of people, they arrest or capture them. The police rounded up a number of suspects She says the patrolmen rounded them up at the village school and beat them with rifle butts
If you round up animals or things, you gather them together. He had sought work as a cowboy, rounding up cattle see also round 2, roundup