Pronunciation: (brōch),[key] —n. 1. Mach.an elongated, tapered, serrated cutting tool for shaping and enlarging holes.
2. a spit for roasting meat.
3. a gimlet for tapping casks.
4. (in a lock) a pin receiving the barrel of a key.
5. Also,broach' spire".Archit.an octagonal spire rising directly from a tower without any intervening feature.
6. Masonry.a pointed tool for the rough dressing of stone.
—v.t. 1. to enlarge and finish with a broach.
2. to mention or suggest for the first time: to broach a subject. 3. to draw (beer, liquor, etc.), as by tapping: to broach beer from a keg. 4. to tap or pierce.
5. Masonry.to shape or dress (a block of stone).
—v.i. 1. Naut.(of a sailing vessel) to veer to windward.
2. to break the surface of water; rise from the sea, as a fish or a submarine.