delay vs wait

delay and wait both are nouns.

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

As nouns, delay and wait are synonyms defined as:

Other synonyms of delay include hold, postponement, time lag.

As verbs, wait is a hypernym of delay; that is, wait is a word with a broader meaning than delay:

Other hypernyms of delay include hold back, hold off.

delay (noun)	wait (noun)
the act of delaying; inactivity resulting in something being put off until a later time	the act of waiting (remaining inactive in one place while expecting something)
time during which some action is awaited	time during which some action is awaited

delay (verb)	wait (verb)
cause to be slowed down or delayed	look forward to the probable occurrence of
stop or halt	serve as a waiter or waitress in a restaurant
slow the growth or development of	stay in one place and anticipate or expect something
act later than planned, scheduled, or required	wait before acting