Search Result for "sit up":
Wordnet 3.0

VERB (2)

1. not go to bed;
- Example: "Don't stay up so late--you have to go to work tomorrow"
- Example: "We sat up all night to watch the election"
[syn: stay up, sit up]

2. change to an upright sitting position;
- Example: "He sat up in bed"



WordNet (r) 3.0 (2006):

sit up
    v 1: not go to bed; "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, sit up]
    2: change to an upright sitting position; "He sat up in bed"