nounAinmfhocal1religionreiligiúnthe Holy Grailan Soitheach Naofa2 (also nó holy grail)the holy grail of our research is to cure diseasegalair a leigheas an sprioc atá againn leis an taighde seosales are the holy grail of advertising companiesdíolacháin an chloch is mó ar phaidrín lucht fógraíochta