bracketted

Bracketted is the past tense of bracket, meaning to enclose or set apart text or data with brackets. It is used in editing and typography when a writer or editor places material inside square brackets [ ] or other bracket types to add information, clarify meaning, or indicate editorial insertion. The form bracketted is more common in British English, while bracketed is the preferred spelling in American English.

In practice, bracketted material may include insertions, omitted words, or editorial glosses, indicated by brackets within quoted text. Bracketing also appears in technical contexts: in mathematics to denote intervals, as in [a, b], or in programming and data markup to group expressions or annotate ranges. In scholarly writing, brackets are used for citations, translations, or clarifications, with the bracketed content distinguishing the author’s original wording from the editor's additions.

Bracketing, as a noun, refers to the act or process of placing items in brackets. Related terms include bracket, bracketed, and bracketing.