lieutenant colonel

noun4

1. •
   An army officer in many countries, ranking below a colonel and above a major. Often the commander of a battalion or the executive officer of a regiment.
2. •
   An English-language term used as a general categorization for military officer ranks that are the equivalent of lieutenant colonel, the relative rank level is found in most countries.
3. •
   An officer in the United States Marine Corps or Royal Marines, of equivalent rank to their counterparts in the army.
4. •
   An officer in the United States Air Force, Air Force Reserve, or Air National Guard, ranking below colonel and above major. Often the commander of a squadron or the executive officer of a wing.

noun2

1. •
   An army officer title for the rank of lieutenant colonel, found in many countries.

   • Lieutenant Colonels Smith and Gildea were awarded the Order of the Fatherland, Second Class. — 1955
2. •
   A military officer title used in English for ranks that are treated as the equivalent to the rank of lieutenant colonel, in which the equivalent ranks are found in most countries.