comma {Ans: A punctuation mark used to join two independent clauses, separate items in a list, and set apart phrases.}interjection {Ans: A word that expresses emotion and is usually accompanied by an exclamation mark.}noun {Ans: A word that represents a person, place, or thing.}question mark {Ans: A punctuation mark used to end question sentences.}semicolon {Ans: A punctuation mark used to join two independent clauses not used with conjunctions.}clause {Ans: A group of words that has a subject and a predicate.}