holy
adjective
ˈhəʊli 
ˈhoʊli 
1 [usually before noun] connected with God or a particular religionthe Holy Bible/Scripturesholy grounda holy war (= one fought to defend the beliefs of a particular religion)the holy city of MeccaIslam's holiest shrineOpposite
unholy see also holy orders2 good in a moral and religious waya holy life/manOpposite
unholy3 [only before noun] (informal) used to emphasize that you are surprised, afraid, etc.Holy cow! What was that? see also holier-than-thou, holiness