WordNet: anniversary, day of remembrance

the date on which an event occurred in some previous year (or the celebration of it)

• hypernym day

• hyponym birthday

• hyponym jubilee

• hyponym wedding anniversary

• hyponym semicentenary, semicentennial

• hyponym centenary, centennial

• hyponym sesquicentennial

• hyponym bicentenary, bicentennial

• hyponym tercentenary, tercentennial, triennial

• hyponym quatercentenary, quatercentennial

• hyponym quincentenary, quincentennial

• hyponym millenary, millennium

• hyponym bimillenary, bimillennium

anniversary

• (suomi) vuosipäivä (synonyymi)

• (suomi) merkkipäivä (synonyymi)

day of remembrance

• (suomi) merkkipäivä (synonyymi)