punctuation – n. the marks in a piece of writing that make its meaning clear and that separate it into sentences or clauses

comedian – n. a person who makes people laugh by telling jokes or funny stories or by acting in a way that is funny

auxiliary verb – n. a verb used with another verb to how the verb's tense or to form a question

mispronounce – v. to say or state (a word or name) incorrectly

refer – v. to direct attention to; to describe

informal – adj. casual; unceremonious

interrogative – n. a word used in questions

role – n. an actor's part in a play or movie; a position or job