* Simple: The red light signifies that you must stop.
* Figurative: The crumbling building signifies the decline of the neighborhood.
* With a specific meaning: The artist's use of bright colors signifies joy and optimism.
* Formal: The presence of a monarch signifies the importance of tradition.
* In a negative context: The lack of communication signifies a growing rift in the relationship.
Remember: "Signify" means to be a sign or symbol of something. It implies a deeper meaning or importance than simply "mean".