round up

verb

1. to gather (animals, suspects, etc) together

   to round ponies up

2. to raise (a number) to the nearest whole number or ten, hundred, or thousand above it Compare round down

noun

1. the act of gathering together livestock, esp cattle, so that they may be branded, counted, or sold

2. any similar act of collecting or bringing together

   a roundup of today's news

3. a collection of suspects or criminals by the police, esp in a raid

Idioms and Phrases

Collect or gather in a body, as in We'll have to round up some more volunteers for the food drive, or The police rounded up all the suspects. This term comes from the West, where since the mid-1800s it has been used for collecting livestock by riding around the herd and driving the animals together. By about 1875 it was extended to other kinds of gathering together.

Related Words

• bring in 
• bring together www.thesaurus.com
• herd