drop vs fatigue

drop and fatigue both are nouns.

Word	Noun	Adjective	Verb	Adverb
drop	Yes	No	Yes	No
fatigue	Yes	No	Yes	No

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

Other hyponyms of drop include jade, pall, tire, weary, fade, languish, rot, waste.

drop (noun)	fatigue (noun)
the act of dropping something	labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on)
a central depository where things can be left or picked up	(always used with a modifier) boredom resulting from overexposure to something
a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery	temporary loss of strength and energy resulting from hard physical or mental work
a sudden sharp decrease in some quantity	used of materials (especially metals) in a weakened state caused by long stress
a free and rapid descent by the force of gravity
a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property)
a steep high face of rock
a small indefinite quantity (especially of a liquid)
a shape that is spherical and small

drop (verb)	fatigue (verb)
give birth; used for animals	exhaust or get tired through overuse or great strain or stress
grow progressively worse	lose interest or become bored with something or somebody
go down in value
stop pursuing or acting
change from one level to another
lower the pitch of (musical notes)
fall or sink into a state of exhaustion or death
leave undone or leave out
omit (a letter or syllable) in speaking or writing
utter with seeming casualness
lose (a game)
take (a drug, especially LSD), by mouth
remove (cargo, people, etc.) from and leave
to remove
cause to fall by or as if by delivering a blow
let or cause to fall in drops
to fall vertically
let fall to the ground
fall or descend to a lower place or level
pay out
stop associating with
terminate an association with
hang loosely