sit-up

noun
\ ˈsit-ˌəp How to pronounce sit-up (audio) \

Definition of sit-up

 (Entry 1 of 2)

: a conditioning exercise performed from a supine position by raising the torso to a sitting position and returning to the original position without using the arms or lifting the feet

sit up

verb
sat up; sitting up; sits up

Definition of sit up (Entry 2 of 2)

intransitive verb

1a : to rise from a lying to a sitting position
b : to sit with the back erect
2 : to show interest, alertness, or surprise sit up and take notice
3 : to stay up after the usual time for going to bed

First Known Use of sit-up

Noun

1900, in the meaning defined above

Verb

13th century, in the meaning defined at sense 1a

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Last Updated

17 Sep 2019

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Time Traveler for sit-up

The first known use of sit-up was in the 13th century

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More Definitions for sit-up

sit-up

noun

English Language Learners Definition of sit-up

: an exercise in which you lie on your back and use your stomach muscles to raise the top part of your body to a sitting position

sit-up

noun
\ ˈsit-ˌəp\

Kids Definition of sit-up

: an exercise done by lying on the back and rising to a sitting position

More from Merriam-Webster on sit-up

Rhyming Dictionary: Words that rhyme with sit-up

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