What are brackets? Brackets are punctuation marks used in pairs. You can have round ( ) or square [ ] brackets. Brackets are often referred to as parentheses (especially in the US).
Round brackets ( ) are used to enclose an afterthought or additional information. They are also used to present a plural option with a singular one.
Square brackets [ ] are used to make quoted text clearer by showing insertions by the current author. Square brackets can also be nested (using square brackets [like these] inside round brackets).
- He finally answered (after taking five minutes to think) that he did not understand the question.
- “Four score and seven [today we’d say eighty-seven] years ago…”
Are you a bracket user? I know for me that I’ve used parentheses more than I have square brackets.