sidetrack vs divert

sidetrack is a noun but divert is not a noun.

Word	Noun	Adjective	Verb	Adverb
sidetrack	Yes	No	Yes	No
divert	No	No	Yes	No

As verbs, divert is a hypernym of sidetrack; that is, divert is a word with a broader meaning than sidetrack:

Other hypernyms of sidetrack include deviate.

sidetrack (noun)	divert (noun)
a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass

sidetrack (verb)	divert (verb)
wander from a direct or straight course	turn aside; turn away from
	send on a course or in a direction different from the planned or intended one
	withdraw (money) and move into a different location, often secretly and with dishonest intentions
	occupy in an agreeable, entertaining or pleasant fashion