A punctuation mark is defined as “a sign or mark used in writing to divide sentences and phrases”, according to the Oxford Learner’s Dictionary. Let us take a look at the various punctuation marks in English grammar. Punctuation Introduction to Punctuation Punctuation is the system of symbols and signs used in written language to separate sentences and their elements, and to clarify meaning. Correct use of punctuation marks is an important aspect of writing, because they help to convey the intended meaning of the text more clearly. Learn the definition, uses, and rules of 14 common punctuation marks in English. See how to use periods, commas, question marks , exclamation marks , and more with examples and tips. Learn the functions and uses of 14 common punctuation marks in English with simple explanations and examples. Find out how to use quotation marks , apostrophes, hyphens, brackets, parentheses, dashes, ellipses, commas, colons, semicolons, exclamation marks , question marks and full stops.