1 noun MEDtinneas cinn c m uI have a headachetá tinneas cinn ormshe got a headachetháinig tinneas cinn uirthi, bhuail tinneas cinn íit gives me a headachecuireann sé tinneas cinn orm2 noun informal problemcrá croí c m upian sa tóin informal c m uthe traffic is a real headachetá an trácht ina chrá croí ceartit's an administrative headacheis crá croí é ó thaobh an riaracháin de