ray definition, meaning - what is ray in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “ray”

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ray

noun uk   us   /reɪ/

ray noun (BEAM)

B2 [C] a narrow beam of light, heat, etc. travelling in a straight line from its place of origin: A ray of sunshine shone through a gap in the clouds. Light rays bend as they pass from air to water.
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ray noun (SMALL AMOUNT)

C2 [C] a small amount of a feeling that makes you feel happier or more full of hope: There's still a ray of hope that the missing child will be found alive.

ray noun (FISH)

[C] a large, flat sea fish with a long, narrow tail

ray noun (MUSIC)

[S] the musical note re
(Definition of ray from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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