_ in drama operates against a character who is unawares of a situation which the audience know about

The term that describes a situation in drama where the audience knows more than a character who is unaware of the circumstances is "dramatic irony." In this type of irony, the audience is aware of the full situation, while the character is not, leading to a sense of tension and anticipation as the story unfolds. The audience knows what is going to happen, but the character does not, and this creates a sense of dramatic tension as the events unfold. Verbal irony involves saying one thing but meaning another, satire is a literary device that uses humor to criticize society or individuals, and parody is a work that imitates the style or content of another work for comedic effect.