Forcibly repel

Usage examples of fight off.

The berserker base, trying to fight off a Nebulon invasion, could not simultaneously cope very well with the superior firepower of the ship.

And, if so, will the living races of those other megasystems be able to raise up some analog of Solarian humanity to successfully fight off the unliving foe?

Flocanalog had steeled himself for the experience, but was unable to fight off the feeling that he was losing himself, piece by piece.

She would not have to fight off Ylo by day, or submit to her husband’.

In order to fight off the counter-torque of the Hole Hawg you use a separate handle (provided), which you screw into one side of the iron cube or the other depending on whether you are using your left or right hand to operate the trigger.

Too many pressures had descended upon him and even though he had managed to fight off all of them one by one, solving each problem as it was thrust upon him, he was now approaching his limits.

Then he had to fight off a panic attack about the fact that he'd just had a panic attack.

But one cannot help remarking that it must be a powerful infection indeed that took a man of his wisdom and intelligence --- President of the British Academy, no less --- three decades to fight off.