Example: Free enterprise.
A free port.
A free country.
I have an hour free.
Free will.
Free of racism.
Feel free to stay as long as you wish.
A free choice.
source: wordnet30
unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion(adj.all)
Example: Free expansion.
Free oxygen.
A free electron.
source: wordnet30
not held in servitude(adj.all)
Example: After the Civil War he was a free man.
source: wordnet30
Exempt from subjection to the will of others; not under restraint, control, or compulsion; able to follow one's own impulses, desires, or inclinations; determining one's own course of action; not dependent; at liberty.(adjective)
To make free; to set at liberty; to rid of that which confines, limits, embarrasses, oppresses, etc.; to release; to disengage; to clear; -- followed by from, and sometimes by off; as, to free a captive or a slave; to be freed of these inconveniences.(verb)