round up

Từ điển WordNet v3.1 - WordNet Dictionary

verb

seek out and bring together (Freq. 4)
- round up some loyal followers
• Derivationally related forms:
roundup
• Hypernyms:
gather, garner, collect, pull together
• Verb Frames:
- Somebody ----s something
- Somebody ----s somebody
- They want to round up the prisoners