- Noun. (military) The office or jurisdiction of an admiral.
- Noun. (military) The department or officers having authority over naval affairs generally.
- Noun. (legal) The court which has jurisdiction of maritime questions and offenses.
- Noun. (legal) The system of jurisprudence of admiralty courts.
- Noun. (military) The building in which the lords of the admiralty, in England, transact business.