let vs stick out

let is a noun but stick out is not a noun.

Word	Noun	Adjective	Verb	Adverb
let	Yes	No	Yes	No
stick out	No	No	Yes	No

As verbs, stick out is a hyponym of let; that is, stick out is a word with a more specific, narrower meaning than let:

let (noun)	stick out (noun)
a serve that strikes the net before falling into the receiver's court; the ball must be served again

let (verb)	stick out (verb)
leave unchanged	put up with something or somebody unpleasant
cause to move; cause to be in a certain position or condition	extend out or project in space
actively cause something to happen	be highly noticeable
consent to, give permission; permit
grant use or occupation of under a term of contract
make it possible through a specific action or lack of action for something to happen