Other forms: full stops
A full stop is a punctuation mark that looks like a dot at the end of a sentence. If you end your text message with a full stop, your friend might think you're mad at them!
A full stop, more commonly called a period in the U.S., is the punctuation that signals "this sentence is over." Use a full stop at the end of a declarative sentence, saving exclamation points for enthusiastic or emphatic statements, and question marks for questions. Full stops are also used in some abbreviations and initialisms like U.S. and Washington, D.C. People sometimes end a spoken sentence with the words full stop for emphasis: "My cat's the best, full stop."