An unrealistic story depicting past events, often of unknown origin, that may describe plausible but extraordinary events, set in the historical past but with uncertain historicity, or embellished with a kernel of truth to an unlikely degree, and can also refer to a fabricated backstory for a spy with associated documents and records.

A noun "legend" represents a person related to historical legends, a leading protagonist in a historical legend, or a person with extraordinary accomplishments or positive qualities in colloquial slang.

A key to the symbols and color codes on a map, chart, etc.

(numismatics, heraldry) An inscription, motto, or title, especially one surrounding the field in a medal or coin, or placed upon a heraldic shield or beneath an engraving or illustration.

A musical composition set to a poetical story.

(naval) The design and specification of a vessel.