shirtfront
1. [ noun ] (clothing) the front of a shirt (usually the part not covered by a jacket)
Examples:

"he had spilled catsup on his shirtfront"

Related terms: front plastron plastron shirt
2. [ noun ] (film,clothing) a man's detachable insert (usually starched) to simulate the front of a shirt
Synonyms: dickie dicky dickey
Related terms: insert cut-in shirt