From Longman Dictionary of Contemporary Englishinverted commainˌverted ˈcomma ●○○ noun [countable usually plural] British English 1 SLGone of a pair of marks (‘) or (’) that are put at the beginning and end of a written word, sentence etc to show that someone said it or wrote it, or when writing the title of a book, song etc SYN quotation mark → punctuation mark2 → in inverted commas