| 1. | an officer in the U.S. Army, Air Force, or Marine Corps ranking between lieutenant colonel and brigadier general: corresponding to a captain in the U.S. Navy. |
| 2. | a commissioned officer of similar rank in the armed forces of some other nations. |
| 3. | an honorary title bestowed by some Southern states, as to those who have brought honor to the state, prominent businesspersons, visiting celebrities, or the like: When the vice president visited the state he was made a Kentucky colonel. |
| 4. | Older Use. (in the South) a title of respect prefixed to the name of distinguished elderly men. |

, with its medial l pronounced as [r], illustrates one source for the apparent vagaries of English spelling: divergence between a word's orthographic development and its established pronunciation. In this case, English borrowed from French two variant forms of the same word, one pronounced with medial and final [l], and a second reflecting dissimilation of the first [l] to [r]. After a period of competition, the dissimilated form triumphed in pronunciation, while the spelling colonel became the orthographic standard.