gargle vs utter

gargle is a noun but utter is not a noun.

Word	Noun	Adjective	Verb	Adverb
gargle	Yes	No	Yes	No
utter	No	Yes	Yes	No

As verbs, utter is a hypernym of gargle; that is, utter is a word with a broader meaning than gargle:

Other hypernyms of gargle include emit, let loose, let out.

gargle (noun)	utter (noun)
the sound produced while gargling
a medicated solution used for gargling and rinsing the mouth

gargle (adjective)	utter (adjective)
	complete and absolute
	without qualification; used informally as (often pejorative) intensifiers

gargle (verb)	utter (verb)
rinse one's mouth and throat with mouthwash	express in speech
utter with gargling or burbling sounds	articulate; either verbally or with a cry, shout, or noise
	express audibly; utter sounds (not necessarily words)
	put into circulation