swallow vs stick out

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

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

As verbs, stick out is a hypernym of swallow; that is, stick out is a word with a broader meaning than swallow:

Other hypernyms of swallow include abide, bear, brook, digest, endure, put up, stand, stomach, suffer, support, tolerate.

swallow (noun)	stick out (noun)
the act of swallowing
small long-winged songbird noted for swift graceful flight and the regularity of its migrations
a small amount of liquid food

swallow (verb)	stick out (verb)
believe or accept without questioning or challenge	put up with something or somebody unpleasant
keep from expressing	extend out or project in space
tolerate or accommodate oneself to	be highly noticeable
take back what one has said
utter unclearly
engulf and destroy
pass through the esophagus as part of eating or drinking
enclose or envelop completely, as if by swallowing