shirtfront

nouns

the front of a shirt (usually the part not covered by a jacket)
"he had spilled catsup on his shirtfront"
shirtfront
is a part of
a garment worn on the upper half of the body
shirt
is a type of (narrower)
the side that is seen or that goes first
front
a man's detachable insert (usually starched) to simulate the front of a shirt
dickey, dickie, dicky, shirtfront