00More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filtershappenUS /ˈhæpən/・UK /'hæpən/Intransitive VerbTo take place or occurTo occur by chanceA1More dadUS /dæd/・UK /dæd/Countable NounAnother word for fatherA1More Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock