2.(Engin. & Mech.) A piece or combination of pieces, usually triangular in general shape, projecting from, or fastened to, a wall, or other surface, to support heavy bodies or to strengthen angles.
3.(Naut.) A shot, crooked timber, resembling a knee, used as a support.
4.(Mil.) The cheek or side of an ordnance carriage.
5.(Print.) One of two characters (), used to inclose a reference, explanation, or note, or a part to be excluded from a sentence, to indicate an interpolation, to rectify a mistake, or to supply an omission, and for certain other purposes; called also crotchet.
6.A gas fixture or lamp holder projecting from the face of a wall, column, or the like.
7.(Gunnery) A figure determined by firing a projectile beyond a target and another short of it, as a basis for ascertaining the proper elevation of the piece; only used in the phrase, to establish a bracket. After the bracket is established shots are fired with intermediate elevations until the exact range is obtained. In the United States navy it is called fork.