[ad-mer-uh
l] 
| 1. | the commander in chief of a fleet. |
| 2. | a naval officer of the highest rank. |
| 3. | a naval officer of a high rank: the grades in the U.S. Navy are fleet admiral, admiral, vice-admiral, and rear admiral. |
| 4. | Obsolete. the flagship of an admiral. |
| 5. | British. a master who directs a fishing fleet. |
| 6. | any of several often brightly colored butterflies of the family Nymphalidae, as Vanessa atalanta (red admiral). |