catflap.org Online Dictionary Query

  function to do sth. /fˈʌŋkʃən tə dˈuː ˌɛstˌiːˈeɪtʃ/
  dazu dienen, etw. zu tun, die Funktion haben, etw. zu tun
     Synonym: serve to do sth.
  
   see: serve as sth., function as sth., serving, functioning, served, functioned, serve a useful purpose, The sofa had to serve/function as a bed., His death should serve as a warning to other young people., Sweat serves/functions to cool down the body., Can I help you?, Narratives about the past may serve to maintain memories., Police interrogations serve the purpose of solving crimes.