catflap.org Online Dictionary Query

  becomes extinct /bɪkˌʌmz ɛkstˈɪŋkt/
  stirbt aus
     Synonyms: dies out, suffers extinction
  
   see: die out, suffer extinction, become extinct, dying out, suffering extinction, becoming extinct, died out, suffered extinction, become extinct, died out, suffered extinction, became extinct
  

  becomes extinct /bɪkˌʌmz ɛkstˈɪŋkt/
  erlischt
     Synonyms: expires, lapses, terminates, is terminated
  
   see: expire, become extinct, lapse, terminate, be terminated, expiring, becoming extinct, lapsing, terminating, being terminated, expired, become extinct, lapsed, terminated, been terminated, expired, became extinct, lapsed terminated, was terminated, unextinguished, a mortgage is extinguished, The claim is extinguished by prescription., The country ceases to be a member.