00More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filtershappyUS /ˈhæpi/・UK /ˈhæpi/AdjectiveFeeling pleasure or joy; gladA1More birthdayUS /ˈbɚθˌde/・UK /ˈbɜ:θdeɪ/NounDate each year on which you were bornA1More Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock