infix vs sandwich

infix and sandwich both are nouns.

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

As verbs, sandwich is a hyponym of infix; that is, sandwich is a word with a more specific, narrower meaning than infix:

infix (noun)	sandwich (noun)
an affix that is inserted inside the word	two (or more) slices of bread with a filling between them

infix (verb)	sandwich (verb)
attach a morpheme into a stem word	insert or squeeze tightly between two people or objects
put or introduce into something	make into a sandwich