bracket

[ˈbrækɪt]
n
an L-shaped or other support fixed to a wall to hold a shelf, etc
one or more wall shelves carried on brackets
a support projecting from the side of a wall or other structureSee corbel See ancon See console
Also called: square bracket either of a pair of characters, [ ], used to enclose a section of writing or printing to separate it from the main text
a general name for parenthesisa general name for square bracketa general name for brace
a group or category falling within or between certain defined limits
the lower income bracket
the distance between two preliminary shots of artillery fire in range-finding
a skating figure consisting of two arcs meeting at a point, tracing the shape
vb
to fix or support by means of a bracket or brackets
to put (written or printed matter) in brackets, esp as being irrelevant, spurious, or bearing a separate relationship of some kind to the rest of the text
to couple or join (two lines of text, etc) with a brace
to group or class together
to bracket Marx with the philosophers
to adjust (artillery fire) until the target is hit