round up
verb1
Idiomatic To collect or gather (something) together.
- The city hall needs to round up all the wrongly parked bikes across the city.
- They rounded up a group of experts and got their opinions.
2
Idiomatic To 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.
3
Idiomatic, Informal To arrest or detain a group of people based on collective (rather than individualized) cause or suspicion, often as a form of targeted persecution.
- During the Holocaust, the Nazis rounded up Jews into ghettos and concentration camps.
- Major Strasser has been shot. Round up the usual suspects.
4
Arithmetic 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.
- The total is $24,995 — let's round it up to $25,000.
- Synonyms
- aggregate, bracket, aggroup, bring together, collect, corral, confer, congregate, gather, gather up, group, herd, mass, round up, team, team up, togetherize
- Antonyms
- break up, disband, disperse, dissolve, give someone the heave-ho
- Derived terms
- rounder-upper, roundup
- Related terms
- assemble