IPA: /ˈhoʊliər/
KK: /ˈhoʊliər/
More sacred or morally superior than something else.
She believes that her actions make her holier than those who do not help others.
Comparative: holier
Superlative: holiest
Holier → It is formed from "holy" (from Old English *halig*, meaning sacred or consecrated) and "-er" (meaning more). The word "holier" means more sacred or more consecrated than something else.
Think of something that is 'sacred' ('holy') and remember that 'holier' means more sacred.