queue vs line up

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

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

As verbs, queue and line up are synonyms defined as:

Other synonyms of queue include queue up.

queue (noun)	line up (noun)
a braid of hair at the back of the head
(information processing) an ordered list of tasks to be performed or messages to be transmitted
a line of people or vehicles waiting for something

queue (verb)	line up (verb)
form a queue, form a line, stand in line	place in a line or arrange so as to be parallel or straight
	take one's position before a kick-off
	arrange in ranks
	form a queue, form a line, stand in line
	get something or somebody for a specific purpose
	form a line