Sit up
/sit ʌp/A2
Elementary
1. To move from a lying or reclining position to a sitting one.
- After lying in bed for a while, she decided to sit up and read a book.
- He had to sit up quickly when he heard the alarm ringing.
2. To stay awake and not go to bed until later than normal.
- They decided to sit up late into the night watching movies.
- She often sits up past midnight when she's working on a big project.
Synonyms:
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