A bit of punctuation is a form of punctuation used to separate words, phrases, and clauses in a sentence. The most common bit of punctuation is the COMMA (5 letters), which is used to separate items in a list or to indicate a pause in a sentence. A COLON (5 letters) is used to introduce a list or to emphasize a point. An endash (6 letters) is used to indicate a range of numbers or dates, or to indicate a break in a sentence.