| 1. | the whole body of warships and auxiliaries belonging to a country or ruler. |
| 2. | (often initial capital letter ) the complete body of such warships together with their officers and enlisted personnel, equipment, yards, etc., constituting the sea power of a nation. |
| 3. | (often initial capital letter ) the department of government charged with its management. |
| 4. | navy blue. |
| 5. | Archaic. a fleet of ships. |