Round brackets are primarily used in four situations.
- Secondary or marginal informationUse round brackets to indicate information that is secondary or marginal to the main idea of the sentence.
- Explanations or abbreviations of preceding informationUse round brackets to expand on or explain preceding information.
EU-OSH (the European workplace safety and health agency) works to ensure that these regulations are respected. When a passage within round brackets is at the end of a sentence, of which it is only a part, place the full stop after the closing bracket. However, when the bracketed passage is a complete sentence, place the full stop before the opening bracket and then add a second full stop before the closing bracket.
- OptionsUse round brackets to represent options.
- Enumerations in a body of textUse round brackets to enclose numerals or letters in an enumeration in the body of a text. Use roman type rather than italics for the numerals and letters.