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English definition of “ray”

ray

noun
 
 
/reɪ/
B2 [C] a narrow beam of light, heat, or energy: an ultraviolet ray the rays of the sunLightPhysics in general
a ray of hope/comfort, etc a small amount of hope, etc → See also X-rayGeneral words for size and amount
(Definition of ray from the Cambridge Learners Dictionary © Cambridge University Press)
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