xi Meaning in the Cambridge English Dictionary
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Meaning of “xi” in the English Dictionary

"xi" in British English

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xinoun [C or U]

uk   us   /saɪ/ (symbol Ξ, ξ)
the 14th ​letter of the ​Greekalphabet
(Definition of xi from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of xi?
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