either of a pair of characters [ ], used to enclose a section of writing or printing to separate it from the main text
2. Also called: bracket
either of these characters used as a sign of aggregation in mathematical or logical expressions indicating that the expression contained in the brackets is to be evaluated first and treated as a unit in the evaluation of the whole
English Easy Learning GrammarSquare brackets [ ]Square brackets are used, usually in books and articles, when supplying words thatmake a quotation clearer or that comment on it, although they were not ... Read more
English Easy Learning GrammarBrackets ( )Brackets (also called parentheses) are used to enclose a word or words which can beleft out and still leave a meaningful sentence. The wooded area (see ... Read more