turndown

noun
  1. 1

    A downturn.

  2. 2

    A rejection.

  3. 3

    (hotels) The service of turning down the bedcovers and often leaving chocolates, etc., on the pillow.

  4. 4

    A downward pointing extension to a vehicle muffler.

adjective
  1. 1

    Capable of being turned down, or decreased in intensity.

    โ€œa turndown lampโ€

  2. 2

    Made to wear with the upper part turned down.

    โ€œa turndown collarโ€

Source: https://en.wiktionary.org/wiki/turndown