Question 1

What does "fight off" mean?

Accepted Answer

To defend yourself successfully against a physical attacker by fighting.

Question 2

How do you use "fight off" in a sentence?

Accepted Answer

She managed to fight off her assailant and escape.

Question 3

Is "fight off" formal or informal?

Accepted Answer

"fight off" is register-neutral — appropriate in both casual and formal contexts. Used in physical, medical, and figurative contexts. Very common in sports reporting ('fight off a challenge') and health contexts ('fight off a cold'). Implies success — the threat is repelled. Compare with 'fight back', which focuses on the resistance, not necessarily the outcome.

fight off

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