Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sit-up

1 sense of sit-up

Sense 1
sit-up -- (a stomach exercise in which a person sits up from a supine position without using the arms for leverage)
       => stomach exercise, tummy crunch -- (an exercise designed to strengthen the abdominal muscles)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb sit-up

2 senses of sit up

Sense 1
stay up, sit up -- (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")
       => wake -- (be awake, be alert, be there)

Sense 2
sit up -- (change to an upright sitting position; "He sat up in bed")
       => change posture -- (undergo a change in bodily posture)