bracket

(noun) a category falling within certain defined limits.

(noun) either of two punctuation marks (`<' or `>') used in computer programming and sometimes used to enclose textual material. Synonyms: angle bracket.

(noun) either of two punctuation marks ([ or ]) used to enclose textual material. Synonyms: square bracket.

(noun) a support projecting from a wall (as to hold a shelf). Synonyms: wall bracket.

(verb) support with brackets. Example: "Bracket bookshelves."

(verb) place into brackets. Synonyms: bracket out. Example: "Please bracket this remark."

(verb) classify or group.