trillion

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tril·lion / ˈtrilyən/ • cardinal number (pl. -lions or (with numeral) same) a million million (1,000,000,000,000 or 1012). ∎  (trillions) inf. a very large number or amount: the yammering of trillions of voices. ∎ dated, chiefly Brit. a million million million (1,000,000,000,000,000,000 or 1018).DERIVATIVES: tril·lionth / -yən[unvoicedth]/ ordinal number .

trillion

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trillion third power of a million (in France and U.S.A., a thousand billions). XVII. — F. trillion or It. trilione, formed like BILLION on million with substitution of TRI-.

trillion

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trillion One thousand billion (i.e. 1012).