noun

• (aviation) A type of large dirigible rigid airship of the early 20th century, built by the German Luftschiffbau Zeppelin and designed to carry passengers or bombs.
• (aviation, by extension, informal) A rigid airship dirigible, not restricted to Germany nor the early 20th century.
• A German manufacturing company, famed for building the Zeppelin airships.
• Alternative letter-case form of Zeppelin [(aviation) A type of large dirigible rigid airship of the early 20th century, built by the German Luftschiffbau Zeppelin and designed to carry passengers or bombs.]
• Abbreviation of Led Zeppelin.