n. A type of Iron Age stone tower with hollow double-skinned walls found on Orkney and Shetland and parts of the Scottish mainland.
The Century Dictionary and Cyclopedia
n. Same as brough.
Word Usage
"The center of the settlement features a massive round stone watchtower called a broch, approximately 50 feet in diameter and 12-15 feet high, surrounded by well-preserved buildings, some with yellow clay still plastered to the walls."