The chief officer of a regiment; an officer ranking next above a lieutenant colonel and next below a brigadier general
A colonel is a senior officer in an army, air force, or the marines. This particular place was run by an ex-Army colonel. Colonel Edward Staley. a high rank in the army, Marines, or the US air force, or someone who has this rank (coronal (16-17 centuries), from coronnel, from colonnello , from colonna , from columna; COLUMN)
a commissioned military officer in the United States Army or Air Force or Marines who ranks above a lieutenant colonel and below a brigadier general