gigayear Definition

octennial, year, civil year, yeared, annotinous, tricennial, million, billion, bimillenary, millionary, vigintillion, toyear, common year, trieterical, per centum, unit of time, sexennially, trimonthly, novennial, quinquennalia, sidereal year, monetary unit, aftercrop, anomalistic year, fotmal, septennially, nickel note, unit of measurement, tunisian monetary unit, triduan, one hundred one, time bill, megampere, geological time, overissue, month, sexennial, outworth, time of life, sabbatical year, bimestrial, terdiurnal, milliary, myriare, tropical year, large indefinite quantity, hornotine, decade, per procurationem, overdeal, dureless, trillion, trimestrial, time unit, isocryme, or so, geological period, anniversarily, per annum, mean solar day, annually, solar year, ordovician period, nearly, astronomy unit, hundred dollar bill, decemfid, japanese monetary unit, amount of money, dollar, anno mundi, annum, metric system, bushelage, cardinal number, time of year, bimester, bimensal, paper currency, ago, calendar month, astronomical year, two dollar bill, mass unit, hot money, metric unit, milliard, while away, dissave, spend, ten, beaconage, decadist, last, old age pension, avoirdupois unit, sixsome, muchwhat, decempedal, silurian period,