sesquicentennial Synonyms

anniversary septennial sexagenary sexagesimal sixtieth tricennial long hundred 60th quincentenary quincentennial bissextile day centennium centref centrev sesquicentury 150th anniversary one hundred fiftieth anniversary one hundred and fiftieth anniversary octennial commemoration bicentenary bicentennial biennial birthday cental centare centenarian centenary centennial centred centigram centimeter centistere centumvir centumvirate centurion century 150-year anniversary