"Guise" refers to an external appearance or manner that conceals the true nature of something or someone. It often implies a deceptive or assumed identity, used to mask intentions or characteristics. The term can describe both literal disguises (e.g., costumes) and figurative pretenses (e.g., false motives). Originating from Old French *guise* ("style, manner"), it underscores the duality between surface perception and underlying reality. Commonly used in phrases like "in the guise of," it suggests actions or roles adopted under false pretenses, such as kindness hiding manipulation. The concept resonates in literature, psychology, and everyday contexts where appearances differ from truth.