square bracket
From Longman Dictionary of Contemporary EnglishRelated topics: Letters & punctuationsquare bracketˈsquare ˈbracket noun [countable] British English SLAone of the pair of signs [ ] that are used for enclosing information SYN bracket American Englishin square brackets The words in square brackets should be deleted.Examples from the Corpussquare bracket• The square bracket shows the position of the insert.