noun

1. an architectural support projecting from a wall, as a corbel
2. any angle-shaped support, esp. one in the form of a right triangle
3. a wall shelf or shelves held up by brackets
4. a wall fixture, as for a small electric lamp
5. either of the pair of signs [ ], or sometimes < >, used to enclose a word or words inserted as for explanation, quantities to be taken as a single quantity, etc.
6. the part of a classified, graded grouping that falls within specified limits the $30,000 to $40,000 income bracket
7. 1. the interval between the ranges of two rounds of artillery fire, as one over and the other short of the target, used to find the correct range
   2. such a pair of rounds

Etymology: earlier bragget < Fr braguette, codpiece, dim. of brague, knee pants; ult. < Gaul *braca, pants

transitive verb

1. to provide or support with brackets
2. to enclose within brackets
3. to group, classify, or associate together Grant and Lee are bracketed in history
4. to establish a bracket for (an artillery target)