Sit up

verb

Word Frequency: 2.0

Definitions

1.verbTo assume a sitting position from a position lying down.

"Despite being sick, Lorin sat up to greet the visitors."

2.verbTo sit erect.

"Sit up straight, mister!"

3.verbTo show sudden interest or surprise.

"He sat up when we mentioned the increased pay package."

4.verb(of the ball) To bounce, especially to a comfortable height.

5.verbTo not go to bed (notionally remaining in a sitting position).

"I sat up all night waiting for her to come home."

6.nounAn exercise in which the abdominal muscles are contracted, bringing the torso of a person lying down to a more upright position.

"Susan's doing sit-ups to strengthen her muscles."

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