Push hard!
Meaning: This means to ask someone to apply a lot of force when pushing something. It's like saying, Use your strength to move the object.
Choice of Words: Push is a verb that means to apply force to something in order to move it. Hard is an adverb that means with great force. When you put them together, "Push hard!" is an instruction asking someone to apply a lot of force when pushing something.
Alternative Expressions
Related Expressions