Fend off and Push back

Fend off verb - To drive back.

Push back and fend off are semantically related In some cases you can use "Push back" instead a verb "Fend off".

Push back verb - Cause to move back by force or influence.

Fend off and push back are semantically related in repulse topic. Sometimes you can use "Fend off" instead a verb "Push back", if it concerns topics such as turn away, push away.