An allusion is a brief and indirect reference to a person, place, thing or idea of historical, cultural, literary or political significance.
Ex. He makes vague allusions to Harry Potter being his son.
Comic releifs are comic episodes in a dramatic or literary work that offset more serious sections.
I have been recruited to provide the comic relief in the new production coming out in a month.
An aside is a remark or passage by a character in a play that is intended to be heard by the audience but unheard by the other characters in the play.
They have the character of asides.
a foil character contrasts with another character (usually the protagonist) in order to highlight particular qualities of the other character.
Mercutio is considered a foil to Romeo in Romeo and Juliet.
A monologue is a long and typically tedious speech by one person during a conversation.
Most of the playwright’s works began with a monologue that described what would take place during the play.
A dialogue is an exchange of ideas or opinions on a particular issue, especially a political or religious issue, with a view to reaching an amicable agreement or settlement.
Because Kelly does not listen well, it is hard to establish a dialogue with her.
A soliloquy is an act of speaking one's thoughts aloud when by oneself or regardless of any hearers, especially by a character in a play.
There is one other long soliloquy in the play?
A tragic hero is a person of noble birth with heroic or potentially heroic qualities.
Romeo is the tragic hero in Shakespeare's Romeo and Juliet.
An oxymoron is a figure of speech in which apparently contradictory terms appear in conjunction
Normally, an oxymoron consists of a noun and an adjective which clashes in opposition with that noun.
Foreshadowing is a warning or indication of (a future event)
The good news was foreshadowed by several disturbing events.