1. (n.) An immense number; a very great many; an indefinitely large number\.

2. (n.) The number of ten thousand; ten thousand persons or things.

3. (a.) Consisting of a very great, but indefinite, number; as, myriad stars.

G M a billion a crore a lakh a million a myriad a nonillion a quadrillion a thousand a zillion abundance affluence ample sufficiency ampleness amplitude avalanche billion bonanza bountifulness bountiousness bumper crop chiliad chiliagon chiliahedron chiliarch chiliarchia considerable copiousness ever so many extravagance exuberance fertility flood flow foison full many full measure fullness generosity generousness grand great abundance great plenty gush heaped-up jillion kilo kilocycle kilogram kilohertz kiloliter kilometer lakh landslide lavishness liberality liberalness lots luxuriance many maximum millennium millepede milligram milliliter million more than enough much multifarious multifold multiple multitudinal multitudinous myriads no few not a few numerous numerousness one hundred thousand opulence opulency outpouring overflow plenitude plenteousness plentifulness plenty prevalence prodigality productiveness profuseness profusion quantities quite some repleteness repletion rich harvest rich vein richness riot riotousness scads shower spate stream substantiality substantialness superabundance teemingness ten thousand thou thousand very many wealth yard zillion