holdup vs delay

holdup and delay both are nouns.

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

As nouns, holdup and delay are synonyms defined as:

holdup and delay: the act of delaying; inactivity resulting in something being put off until a later time

holdup (noun)	delay (noun)
robbery at gunpoint	the act of delaying; inactivity resulting in something being put off until a later time
the act of delaying; inactivity resulting in something being put off until a later time	time during which some action is awaited

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