1. A strait-bodied coat, of the same length before and behind, like a surtont, but shorter.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• drock coat,
• crock coat,
• vrock coat,
• grock coat,
• trock coat,
• rrock coat,
• feock coat,
• fdock coat,
• ffock coat,
• ftock coat,
• f5ock coat,
• f4ock coat,
• frick coat,
• frkck coat,
• frlck coat,
• frpck coat,
• fr0ck coat,
• fr9ck coat,
• froxk coat,
• frovk coat

The adjective form of the word "frock coat" is "frock-coated".

The plural form of the word "frock coat" is "frock coats".

The singular form of the word "frock coat" is "frock coat". The noun remains the same in both singular and plural forms.