fall vs yield

fall and yield both are nouns.

Word	Noun	Adjective	Verb	Adverb
fall	Yes	No	Yes	No
yield	Yes	No	Yes	No

As verbs, yield is a hypernym of fall; that is, yield is a word with a broader meaning than fall:

fall (noun)	yield (noun)
a sudden drop from an upright position	production of a certain amount
the act of surrendering (usually under agreed conditions)	an amount of a product
a lapse into sin; a loss of innocence or of chastity	the income or profit arising from such transactions as the sale of land or other property
a sudden sharp decrease in some quantity	the quantity of something (as a commodity) that is created (usually within a given period of time)
a free and rapid descent by the force of gravity
a sudden decline in strength or number or importance
when a wrestler's shoulders are forced to the mat
a movement downward
a downward slope or bend
the season when the leaves fall from the trees
the time of day immediately following sunset

fall (verb)	yield (verb)
occur at a specified time or place	end resistance, as under pressure or force
decrease in size, extent, or range	consent reluctantly
pass suddenly and passively into a state of body or mind	be willing to concede
be born, used chiefly of lambs	cease opposition; stop fighting
come out; issue	be flexible under stress of physical force
assume a disappointed or sad expression	give or supply
begin vigorously	cause to happen or be responsible for
come as if by falling	move in order to make room for someone for something
be cast down	bring in
go as if by falling	give over; surrender or relinquish to the physical control of another
fall or flow in a certain way	be the cause or source of
move downward and lower, but not necessarily all the way	give in, as to influence or pressure
move in a specified direction	be fatally overwhelmed
descend in free fall under the influence of gravity
slope downward
drop oneself to a lower or less erect position
lose an upright position suddenly
to be given by assignment or distribution
be captured
fall to somebody by assignment or lot; passed
come into the possession of
to be given by right or inheritance
be inherited by
lose office or power
yield to temptation or sin
suffer defeat, failure, or ruin
lose one's chastity
die, as in battle or in a hunt
be due
come under, be classified or included
touch or seem as if touching visually or audibly
fall from clouds