round up

British  

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

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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

round up Idioms  

1. 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.

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Example Sentences

See Examples For:

round up

Mr. Weidensaul’s well-timed effort to round up good news shows that there is indeed hope for endangered birds across the planet—and that saving them also saves the world.

From The Wall Street Journal ● May 1, 2026

A core of Minneapolis activists is playing a high-stakes game of cat and mouse with the federal agents deployed in force to the midwestern city to round up undocumented immigrants.

From Barron's ● Jan. 28, 2026

Last year, the Forest Service and Bureau of Land Management approved a plan to round up and remove hundreds of the horses roaming beyond the territory designated for them along the California and Nevada border.

From Los Angeles Times ● Jan. 22, 2026

Federal officials plan to round up wild horses roaming the Eastern Sierra, citing hazards and damage.

From Los Angeles Times ● Jan. 22, 2026

She knew how much work they had done to track the gang and round up witnesses.

From "The Woman All Spies Fear" by Amy Butler Greenfield

Related Words

• bring in
• bring together
• herd