octocentenary Definition

semicentennial, bimillenary, fiftieth, anniversary, centenary, tricentenary, hundredth, tenth, cardinal number, jubilarian, fortieth, centennial, ordinal number, jubilar, tricennial, anniversarily, novennial, triduan, eightieth, quinible, octogenary, trieterical, octogamy, senarius, twelfthtide, bimillennium, sextain, sixtieth, octennial, one hundred one, sexennial, commemoration, octofid, thirtieth, eight, quadragenarian, septimole, seventieth, twenty, eighth, birthday, centistere, decemfid, bicentennial, tridiapason, twelfth, eleven, sixteen, sexennially, eightsome, trimonthly, fifteenth, five, six, unit of time, birthnight, octospermous, fifth, tercentenary, ninth, novenary, sixth, trigeminous, septuplet, octonary, ninetieth, jubilee, seven, diapente, ten, sevennight, seventh, subtriple, commemorative, four, thirteenth, quadrifarious, celebration, quinquagenarian, nine, eightling, bicentenary, subsextuple, umptieth, fotmal, twelvepence, tetrastich, commemoratory, victory day, thousandth, time of life, sevensome, nineteen, duodenary, sixsome, civil year, three, pentapody, tergeminous, milliary,