Meaning of “zillion” in the English Dictionary

american-english dictionary

(Definition of “zillion” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"zillion" in American English

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zillionnoun [ C ]

us /ˈzɪl·jən/ infml

an extremely large number or amount:

There were zillions of people to help you, all the time.

(Definition of “zillion” from the Cambridge Academic Content Dictionary © Cambridge University Press)