IPA: /ˈpʊʃʌp/
KK: /ˈpʊʃˌʌp/
A physical exercise that strengthens the muscles in the arms and chest, done by lying on the ground and pushing the body up and down using the arms.
She does pushups every morning to stay fit.
Pushup → It is formed from "push" (from Old English "pyssan", meaning to thrust or shove) and "up" (meaning to a higher position). The word "pushup" refers to a physical exercise where one thrusts the body upward from a prone position.
Think of 'thrusting' ('push') your body 'up' to remember that a pushup is an exercise where you lift yourself up.
No commonly confused words.