Juxtaposition is the technique of placing two objects side by side in order to make a comparison between them. It is often used in literary works to show how characters are different from each other.
This technique can be used to create dramatic tension and irony in a story. In The Great Gatsby, for example, juxtaposing the opulence of Gatsby’s parties with his failed businesses creates a sense of tension and conflict that isn’t present when only one side is presented. Another example would be placing Romeo and Juliet in Verona with the Capulet estate right next door to it. This creates an immediate sense of tension because it shows how different these two families are and how impossible their romance can be in such an environment.
It can also be used to create a sense of tension or conflict between two elements. If you put a character who speaks softly and slowly next to someone who shouts loudly every time they open their mouth, then your audience will likely feel uneasy from this juxtaposition.
Juxtaposition is also used in poetry and song lyrics as a way of creating vivid imagery through comparisons and contrasts. It can be used to create a sense of irony or irony when two things are compared against each other and are not what they seem (or at least one of them).