sit up

Từ điển WordNet v3.1 - WordNet Dictionary

verb

1. not go to bed (Freq. 3)
- Don't stay up so late--you have to go to work tomorrow
- We sat up all night to watch the election
• Syn:
stay up
• Hypernyms:
wake
• Verb Frames:
- Somebody ----s
2. change to an upright sitting position (Freq. 1)
- He sat up in bed
• Derivationally related forms:
sit-up
• Hypernyms:
change posture
• Verb Frames:
- Somebody ----s
- Somebody ----s PP