| Noun | 1. | full stop - a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations; "in England they call a period a stop"punctuation mark, punctuation - the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases suspension point - (usually plural) one of a series of points indicating that something has been omitted or that the sentence is incomplete | |