Nouns

(n)rebuff, snub, repulsean instance of driving away or warding off

Verbs

(v)repel, repulse, fight off, rebuff, drive backforce or drive back“repel the attacker”, “fight off the onslaught”, “rebuff the attack”
(v)repel, repulsebe repellent to; cause aversion in
(v)repel, drive, repulse, force back, push back, beat backcause to move back by force or influence“repel the enemy”, “push back the urge to smoke”, “beat back the invaders”