turndown I. \ˈ ̷ ̷ˌ ̷ ̷\adjective Etymology:turn down : capable of being turned down; especially: made to wear with the upper part turned down < blouse with a turndown collar > II. noun (-s) Etymology:turn down 1.: the act of turning down : rejection 2.: something turned down < the turndown of the sheet covered the frayed edge of the blanket > 3.: downturn