free vs pass

free and pass both are nouns.

Word	Noun	Adjective	Verb	Adverb
free	Yes	Yes	Yes	Yes
pass	Yes	Yes	Yes	No

As verbs, pass is a hypernym of free; that is, pass is a word with a broader meaning than free:

Other hypernyms of free include give, hand, pass on, reach, turn over.

free (noun)	pass (noun)
people who are free	(sports) the act of throwing the ball to another member of your team
	a usually brief attempt
	(American football) a play that involves one player throwing the ball to a teammate
	(baseball) an advance to first base by a batter who receives four balls
	success in satisfying a test or requirement
	a flight or run by an aircraft over a target
	a permit to enter or leave a military installation
	any authorization to pass or go somewhere
	an automatic advance to the next round in a tournament without playing an opponent
	a document indicating permission to do something without restrictions
	a complimentary ticket
	a difficult juncture
	one complete cycle of operations (as by a computer)
	the location in a range of mountains of a geological formation that is lower than the surrounding peaks
	a bad or difficult situation or state of affairs
	(military) a written leave of absence

free (adjective)	pass (adjective)
not limited or hampered; not under compulsion or restraint	of advancing the ball by throwing it
not held in servitude
unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion
not literal
completely wanting or lacking
not fixed in position
costing nothing
not taken up by scheduled activities
not occupied or in use

free (verb)	pass (verb)
make (assets) available	eliminate from the body
let off the hook	come to pass
free or remove obstruction from	disappear gradually
remove or force out from a position	pass from physical life and lose all bodily attributes and functions necessary to sustain life
release (gas or energy) as a result of a chemical reaction or physical decomposition	grant authorization or clearance for
part with a possession or right	transmit information
relieve from	pass over, across, or through
grant freedom to; free from confinement	go across or through
make (information) available for publication	travel past
free from obligations or duties	pass into a specified state or condition; sink into
grant relief or an exemption from a rule or requirement to	for time to move forward
	cause to pass
	move past
	place into the hands or custody of
	throw (a ball) to another player
	transfer to another; of rights or property
	be inherited by
	make laws, bills, etc. or bring into effect by legislation
	go unchallenged; be approved
	accept or judge as acceptable
	go successfully through a test or a selection process
	allow to go without comment or censure
	use up a period of time in a specific way
	be superior or better than some standard
	stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point

free (adverb)	pass (adverb)
without restraint