fight back phrasal verb (
see also fight)
1. to work hard to achieve or oppose something, especially in a situation where you are losing:
United fought back and scored a last-minute goal.fight back against
She was fighting back against the cancer.2. to use violence or arguments against someone who has attacked you or argued with you:
The rebels are fighting back.3. fight something ↔ back to try hard not to have or show a feeling:
She looked away, fighting back her tears.
He fought back the impulse to slap her. [TahlilGaran] Dictionary of Contemporary English ▲