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Definition of omega noun from the Oxford Advanced Learner's Dictionary

omega

noun

/ˈəʊmɪɡə/

/əʊˈmeɡə/

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the last letter of the Greek alphabet (Ω, ω)
Word Originfrom Greek ō mega ‘the great O’.

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See omega in the Oxford Advanced American Dictionary

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noun

From the Word list

A1

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