1 a narrow beam of light, heat or other energy:
the sun's rays * ultraviolet rays * The windows were shining in the reflected rays of the setting sun.
seealsoCOSMICRAYS, GAMMARAYS, X-RAY
2 ~ of sth a small amount of sth good or of sth that you are hoping for:
There was just one small ray of hope.
3 a sea fish with a large broad flat body and a long tail, that is used for food
4 (also re) (music) the second note of a MAJOR scale
IDIOMS
a ray of sunshine (informal) a person or thing that makes life brighter or more cheerful
