sit-up
Definitions
General English
- phrasal verb (written as sit up)to sit with your back straight
- phrasal verb (written as sit up)to move from a lying to a sitting position
- phrasal verb (written as sit up)to delay going to bed or to go to bed later than usual
Sports
- noun an exercise in which you lie flat on your back with your legs bent and then raise the upper part of your body to a sitting position without using your hands
