square bracket square-bottomed • square-browed · · · Info · Definitions · Synonyms · Characters · · square bracket · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) either of two punctuation marks ([ or ]) used to enclose textual material. Synonyms: bracket, square bracket. · · Noun Definition 1 Synonyms · · · bracket · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 k latin small letter k U+006B q latin small letter q U+0071 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075