Meaning of “free” - Learner’s Dictionary

free

adjective uk us /friː/
NOT CONTROLLED

B2 able to live, happen, or exist without being controlled by anyone or anything:

free trade
a free society
[ + to do sth ] People should be free to say what they think.
NO COST

A2 not costing any money:

a free sample of perfume
Entry is free for children under 12.
Children get into the museum free of charge.
NOT A PRISONER

B2 not in prison or in a cage:

He opened the cage and set the birds free.
NOT BUSY

A2 not busy doing anything:

Are you free this evening?
I don't have much free time.
NOT USED

not being used by anyone:

Is this seat free?
free from/of sth

not containing or having anything harmful or unpleasant:

a life free from pain

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