ray Definition in the Cambridge English Dictionary
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Definition of “ray” - English Dictionary

Definition of "ray" - American English Dictionary

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raynoun [C]

 us   /reɪ/

ray noun [C] (BEAM)

physics a ​narrowbeam of ​light, ​heat, or ​energy

ray noun [C] (LINE)

geometry half of a ​line

ray noun [C] (AMOUNT)

a ​slightamount or ​signal of something good: One ​coupleseemsinterested in ​buyingourhouse, which is a ray of ​hope after all these ​months.
(Definition of ray from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "ray" - British English Dictionary

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raynoun

uk   us   /reɪ/

ray noun (BEAM)

B2 [C] a ​narrowbeam of ​light, ​heat, etc. ​travelling in a ​straightline from ​itsplace of ​origin: A ray ofsunshineshone through a ​gap in the ​clouds. Light rays ​bend as they ​pass from ​air to ​water.catch some/a few rays informal to ​stayoutside in the ​sun for a ​period of ​time: I'm going out to ​catch a few rays before ​lunch.
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ray noun (SMALL AMOUNT)

C2 [C] a ​smallamount of a ​feeling that makes you ​feelhappier or more ​full of ​hope: There's still a ray of ​hope that the ​missingchild will be ​foundalive.

ray noun (FISH)

[C] a ​large, ​flatseafish with a ​long, ​narrowtail

ray noun (MUSIC)

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