pass vs fly

pass and fly both are nouns.

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

As verbs, fly is a hyponym of pass; that is, fly is a word with a more specific, narrower meaning than pass:

Other hyponyms of pass include fell, vanish.

pass (noun)	fly (noun)
(sports) the act of throwing the ball to another member of your team	(baseball) a hit that flies up in the air
a usually brief attempt	two-winged insects characterized by active flight
(American football) a play that involves one player throwing the ball to a teammate	an opening in a garment that is closed by a zipper or by buttons concealed under a fold of cloth
(baseball) an advance to first base by a batter who receives four balls	flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent
success in satisfying a test or requirement	fisherman's lure consisting of a fishhook decorated to look like an insect
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

pass (adjective)	fly (adjective)
of advancing the ball by throwing it	(British informal) not to be deceived or hoodwinked

pass (verb)	fly (verb)
eliminate from the body	decrease rapidly and disappear
come to pass	change quickly from one emotional state to another
disappear gradually	transport by aeroplane
pass from physical life and lose all bodily attributes and functions necessary to sustain life	hit a fly
grant authorization or clearance for	travel through the air; be airborne
transmit information	operate an airplane
pass over, across, or through	move quickly or suddenly
go across or through	run away quickly
travel past	travel over (an area of land or sea) in an aircraft
pass into a specified state or condition; sink into	travel in an airplane
for time to move forward	pass away rapidly
cause to pass	cause to fly or float
move past	be dispersed or disseminated
place into the hands or custody of	display in the air or cause to float
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