Meaning of “free” - Learner’s Dictionary

free

verb [ T ] uk us /friː/ (present participle freeing, past tense and past participle freed)
ALLOW TO LEAVE

B2 to allow someone to leave a prison or place where they have been kept:

The last hostages were finally freed yesterday.
GET OUT

to get someone out of a situation or place that they cannot escape from:

Firefighters worked for two hours to free the driver from the wreckage.
TAKE AWAY

to help someone by taking something unpleasant away from them:

The book's success freed her from her financial worries.
MAKE AVAILABLE (also free up)

to make something available for someone to use:

I need to free up some space for these files.

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