back stay

brace

brace, 3 1. A metal or wood member which is used to stiffen or support a structure; a strut which supports or fixes another member in position or a tie used for the same purpose. 2. An angle brace. 3. A tool having a handle, crank, and chuck; used for holding a bit or auger and rotating it to drill a hole by hand; also called a bit stock. 4. A raker, 2.