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English definition of “colonel”

colonel

noun [C] uk   /ˈkɜː.nəl/ us    /ˈkɝː-/ (also Colonel, written abbreviation Col.)
an officer of high rank in the army or air force: Colonel is the military rank between lieutenant-colonel and brigadier. Colonel Furlong [as form of address] Yes, Colonel.Ranks in the ArmyRanks in the Air Force
(Definition of colonel from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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