Englishquinquennial/kwɪŋˈkwɛ.ni.əl/ · nounMeaningA fifth anniversary.A five-year period.That happens every five years.That lasts for five years.Related wordsfive-year(English)quinquennal(English)quinquennalian(English)quinquagenary(English)pentennial(English)quadranscentennial(English)quintennial(English)quinquatrian(English)nero(English)faculties(English)overseeing(English)elect(English)SourcesDictionaryAPI.dev English dictionary data