push-up
US /ˈpʊʃ.ʌp/
UK /ˈpʊʃ.ʌp/

1.
an exercise in which a person lies on their stomach and raises their body by pressing down on their hands until their arms are straight, keeping the back and legs straight
:
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He does 50 push-ups every morning.
•
She struggled to complete her first push-up.