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not requiring payment
not limited or hampered; not under compulsion or restraint
not held in servitude
having no particular plans or tasks
unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion
not occupied or in use, and therefore available for someone to use
not fixed in position
not literal
completely wanting or lacking
to release someone from captivity or arrest
remove or force out from a position
relieve from
let off the hook
free or remove obstruction from
make (information) available for publication
to release from responsibilities or commitments
grant relief or an exemption from a rule or requirement to
make (assets) available
release (gas or energy) as a result of a chemical reaction or physical decomposition
part with a possession or right
without restraint
people who are free