comfy vs snug

comfy is not a noun while snug is a noun.

Word	Noun	Adjective	Verb	Adverb
comfy	No	Yes	No	No
snug	Yes	Yes	No	No

comfy (noun)	snug (noun)
	a small secluded room

comfy (adjective)	snug (adjective)
providing or experiencing physical well-being or relief (`comfy' is informal)	enjoying or affording comforting warmth and shelter especially in a small space
	offering safety; well protected or concealed
	fitting closely but comfortably
	well and tightly constructed