Meaning of “struggle” - Learner’s Dictionary

struggle

verb [ I ] uk us /ˈstrʌɡl/
TRY

B2 to try very hard to do something difficult:

[ + to do sth ] He's struggling to pay off his debts.
FIGHT

B2 to fight someone when they are holding you:

She struggled but couldn't break free.

(Definition of “struggle verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)