A piece of material used to transmit, or change the direction of, weight or pressure; any one of the pieces, in a frame or truss, which divide the structure into triangular parts. It may act as a tie, or as a strut, and serves to prevent distortion of the structure, and transverse strains in its members. A boiler brace is a diagonal stay, connecting the head with the shell.
To bind or tie closely; to fasten tightly.
a reinforcement between two points of certain suspension members, usually the tops of the struts
Generally a strut, but sometimes the term is applied to a tie.
Braces are wooden struts glued inside hollowbody guitars providing strength and affecting tone quality. An X brace is a popular brace pattern used in hollowbody guitars. Other bracing patterns include the ladder brace, fan bracing and scalloped braces.