HY


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AcronymDefinition
HYHenry
HYHydraulic
HYHitler Youth
HYHelsingin Yliopisto (Finnish: University of Helsinki)
HYHalf Yearly
HYHundred Yards
HYHell Yeah
HYHygromycin
HYHigh Yield Strength (steel)
HYUzbekistan Havo Yullary (Uzbekistan Airways, IATA airline code)
HYHey Yall