A harlequin is a character from traditional Italian commedia dell'arte, known for its distinctive checkered costume, typically in bright colors. This character often serves as a clever servant or trickster, using wit and agility to navigate various situations. The harlequin's mask and playful demeanor make it a recognizable figure in theater and performance art. In addition to its theatrical roots, the term "harlequin" is also used in other contexts, such as describing a specific pattern or design featuring diamond shapes. In nature, the harlequin duck is a species known for its striking plumage, further illustrating the term's association with vibrant colors and patterns.