be, feel, seem
become
remain
leave sb
The government wants to leave companies free to make their own decisions.

completely, entirely, quite, totally
The students are entirely free to choose their own courses.

truly
fairly, reasonably, relatively

from
The organization wants to remain free from government control.

be, roam, run
animals roaming free across the plains

break, get, pull
The ship broke free from its moorings.
They tied him up but he managed to get free.
She managed to pull free of her attacker.

go, walk
He said he would let the prisoners go free.
She walked free from jail.

remain
cut sb/sth, let sb/sth, pull sb/sth, set sb/sth
He was trapped by his leg, but his rescuers cut him free.
They let their prisoner free.
The birds were set free.

completely, entirely, totally
truly

be, come
This attractive poster comes free with the magazine.

absolutely, completely, entirely, totally
virtually

for free
We might be able to get some plants for free.

free of charge
We will send you our booklet free of charge.

for
The exhibition is free for children under ten.

be
become
remain, stay
keep sth
We've managed to keep the garden free of weeds this year.

completely, entirely, totally
At last he's totally free from pain.

relatively
virtually

be, seem
become
keep sth
The hospital needs to keep some beds free for emergencies.

completely

be
Are you free this afternoon?

keep sth
We try and keep Sundays free.

completely, entirely, totally
fairly, pretty, reasonably

Free is used with these nouns:
access, accommodation, admission, advice, agent, association, booze, buffet, CD, choice, clinic, collection, competition, concert, consultation, copy, country, coupon, distribution, drink, election, electricity, end, enquiry, enterprise, entertainment, entry, exchange, exercise, expression, flow, gift, gig, hand, handout, hotline, improvisation, instruction, interpretation, jazz, kick, labour, leaflet, lift, love, mailing list, man, market, membership, merchandise, movement, nation, offer, overdraft, pardon, parking, pass, passage, prescription, press, publicity, quotation, quote, registration, rent, rental, republic, ride, sample, seminar, service, site, society, software, space, speech, spirit, subscription, thinker, thought, ticket, time, trade, trader, trading, transfer, translation, travel, treatment, trial, trip, tuition, union, use, verse, vote, weight, will, world