inset vs shirtfront

inset and shirtfront both are nouns.

Word	Noun	Adjective	Verb	Adverb
inset	Yes	No	Yes	No
shirtfront	Yes	No	No	No

As nouns, shirtfront is a hyponym of inset; that is, shirtfront is a word with a more specific, narrower meaning than inset:

inset: an artifact that is inserted or is to be inserted
shirtfront: a man's detachable insert (usually starched) to simulate the front of a shirt

Other hyponyms of inset include dickey, dickie, dicky.

inset (noun)	shirtfront (noun)
a piece of material used to strengthen or enlarge a garment	a man's detachable insert (usually starched) to simulate the front of a shirt
an artifact that is inserted or is to be inserted	the front of a shirt (usually the part not covered by a jacket)
a small picture inserted within the bounds or a larger one

inset (verb)	shirtfront (verb)
set or place in