delay vs deferment

delay and deferment both are nouns.

Word	Noun	Adjective	Verb	Adverb
delay	Yes	No	Yes	No
deferment	Yes	No	No	No

As nouns, deferment is a hyponym of delay; that is, deferment is a word with a more specific, narrower meaning than delay:

delay: the act of delaying; inactivity resulting in something being put off until a later time
deferment: act of putting off to a future time

delay (noun)	deferment (noun)
the act of delaying; inactivity resulting in something being put off until a later time	act of putting off to a future time
time during which some action is awaited

delay (verb)	deferment (verb)
cause to be slowed down or delayed
stop or halt
slow the growth or development of
act later than planned, scheduled, or required