punctuationWhat is a comma? 30th June 201930th June 2019 andreamurdoch com·ma /ˈkämə/ noun A punctuation mark (,) indicating a pause between parts of a sentence. It is also used to separate items in a list and to mark the place of thousands in a large numeral. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related