Meaning of “free” - Learner’s Dictionary

free

adverb uk us /friː/
NO COST

A2 without cost or payment:

Children under five travel free.
He offered to do it for free.
NOT CONTROLLED

B2 in a way that is not tied, limited, or controlled:

She broke free from his grasp and ran away.

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