- 1a narrow line of light, heat, or other energy the sun's rays ultraviolet rays The windows were shining in the reflected rays of the setting sun. see cosmic rays, X-ray
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- 2ray of something a small amount of something good, or of something that you are hoping for synonym glimmer There was just one small ray of hope.
- 3a sea fish with a large, broad, flat body and a long tail, that is used for food Idioms
to sit or lie in the sun, especially in order to get a suntan
a person or thing that makes life brighter or more cheerful
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