semicentenary
semicentennial
quinquagenary
diamond
quadranscentennial
quadranscentennially
bicentenary
bicentennial
centennial
quincentennial
quincentenary
golden
centenary
semiquincentennial
tercentennial
triennial
tercentenary
diamond jubilee
jubilee
golden anniversary
quadringentenary
golden wedding anniversary
diamond anniversary
millenary
bimillennium
millennium
bimillenary
sexcentenary
fifties
tricentennial
sesquicentennial
quinquennial
decennial
silver jubilee
bimillennial
centenarian
wooden anniversary
half-century
golden wedding
trimillennial
quatercentennial
diamond wedding
yeartide
quingenary
quatercentenary
diamond wedding anniversary
centennially
millennial
birthday
quinquagesimal
decaversary
forties
sapphire
fifty-oneth
wedding anniversary
silver anniversary
rebirthday
ruby anniversary
quasquicentennial
monthsary
golden jubilee
ice cream changes
silver
quadricentennial
silver wedding anniversary
half birthday
meetaversary
septcentenary
sixties