Aleut /ˌæ.liːˈuːt/noun 2adjective 1forms 1 noun2 •A member of the indigenous people of the Aleutian Islands of Alaska in the United States and of Kamchatka Krai in the Russia. •A native or inhabitant of the Aleutian Islands. adjective1 •Of the Aleutian Islands, their inhabitants or their language. formsAleuts