Entry 4 senses · 2 variants Webster, 1913 Turndown /(tûrn"doun`)/ · Turn·down · IPA /tˈɜrndˌaʊn/ a. n. 01 a. Capable of being turned down; 1. Capable of being turned down;(Elec.) 2. Made to wear with the upper part turned down; as, a turndown collar. 02 n. An act of refusing or of being refused; as, to get a turndown in an application for a job, a grant, etc. 1. An act of refusing or of being refused; as, to get a turndown in an application for a job, a grant, etc. 2. A decline in activity, especially business; a downturn; as, they expect a turndown in housing construction in the fall.