instill vs infix

instill is not a noun while infix is a noun.

Word	Noun	Adjective	Verb	Adverb
instill	No	No	Yes	No
infix	Yes	No	Yes	No

As verbs, infix is a hypernym of instill; that is, infix is a word with a broader meaning than instill:

Other hypernyms of instill include enter, insert, introduce.

instill (noun)	infix (noun)
	an affix that is inserted inside the word

instill (verb)	infix (verb)
fill, as with a certain quality	attach a morpheme into a stem word
produce or try to produce a vivid impression of	put or introduce into something
teach and impress by frequent repetitions or admonitions
enter drop by drop
impart gradually