As nouns the difference between tallboy and highboy

is that tallboy is a tall chest of drawers, or combination of chest on chest, or chest with a small wardrobe on top. Usually with low bracket feet but always resulting in a tall piece of furniture while highboy is a tall chest of drawers raised up on high legs, beginning with the simpler William and Mary style of the late 17th century, culminating in the late baroque 18th century Queen Anne style, progressing into the early Georgian style, with an ornate top and extensive carvings; sometimes called a tallboy. American examples are highly prized by collectors.