I saw this word in the last Sherlock Holmes tale I read, “The Resident Patient”. Based on context, I figured it was a horse drawn carriage of some kind, but I looked it up because I didn’t know how to pronounce it.

Brougham (pronounced “broo-um” or “bro-um”) – a horse drawn carriage with a roof, four wheels, and an open drivers seat in front

Usage: “There’s a brougham waiting for us, Watson,” said he.