wait vs line up

wait is a noun but line up is not a noun.

Word	Noun	Adjective	Verb	Adverb
wait	Yes	No	Yes	No
line up	No	No	Yes	No

wait (noun)	line up (noun)
the act of waiting (remaining inactive in one place while expecting something)
time during which some action is awaited

wait (verb)	line up (verb)
look forward to the probable occurrence of	place in a line or arrange so as to be parallel or straight
serve as a waiter or waitress in a restaurant	take one's position before a kick-off
stay in one place and anticipate or expect something	arrange in ranks
wait before acting	form a queue, form a line, stand in line
	get something or somebody for a specific purpose
	form a line