hapPronunciation: /hap/ archaicDefinition of hap noun [mass noun] luck; fortune: if you have the good hap to come into their houses [count noun] a chance occurrence, especially an event that is considered unlucky: I entertained the Company with the many Haps and Disasters verb (haps, happing, happed) [no object] come about by chance: what can hap to him worthy to be deemed evil? [with infinitive] have the fortune or luck to do something:where’er I happ’d to roamOrigin: Middle English: from Old Norse happhap in other Oxford dictionaries Definition of hap in the US English dictionary