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Quintillion has 2 synonyms. The top synonyms for quintillion are trillion, nonillion. Browse the full list below.
| Length
| Random | DefinitionA common synonym for quintillion is trillion. Other synonyms include nonillion.
Quintillion has 2 synonyms listed on Thesaurasize.
(n): (US; modern British & Australian, short scale) A billion billion: 1 followed by eighteen zeros, 1018; (dated British & Australian, long scale) A million quadrillion: 1 followed by 30 zeros, 1030
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