round up

present singular third person rounds up · participle present rounding up · participle past rounded up · past rounded up

1. idiomatictransitiveTo collect or gather (something) together.

   They rounded up a group of experts and got their opinions.

   1 more example

   The city hall needs to round up all the wrongly parked bikes across the city.

   1. idiomatictransitiveTo gather (livestock such as cattle, sheep, geese, etc.) together, such as by encircling them.

      In the autumn we round up all the hill sheep and bring them down into the barn.

   2. idiomaticinformaltransitiveTo arrest or detain a group of people based on collective (rather than individualized) cause or suspicion, often as a form of targeted persecution.

      Major Strasser has been shot. Round up the usual suspects.

      1 more example

      During the Holocaust, the Nazis rounded up Jews into ghettos and concentration camps.

2. transitivearithmeticTo 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.

   The total is $24,995 — let's round it up to $25,000.

   Synonyms: aggregate, bracket, aggroup, bring together, collect, corral, confer, congregate · Antonyms: round down