Definition of "headache" in Englisch

noun

1. (medicine) A pain or ache in the head.

   • I have a splitting headache after that party last night.
   • I advise you to take some painkillers for the headache, it's probably nothing serious.

2. (figurative) A nuisance or unpleasant problem.

   • The clumsy filing system has been a huge headache.