- ray [reı] n[Sense: 1-5; Date: 1300-1400; : Old French; Origin: rai, from Latin radius; RADIUS][Sense: 6; Date: 1300-1400; : Old French; Origin: raie, from Latin raia]1.) a straight narrow beam of light from the sun or moon▪ The room darkened as a cloud hid the sun's rays.ray of▪ Rays of light filtered through the trees.2.) a beam of heat, electricity, or other form of energy3.) a ray of hope/light etcsomething that provides a small amount of hope or happiness in a difficult situation▪ a treatment that offers a ray of hope for cancer sufferers4.) a ray of sunshinesomeone who is happy and makes a difficult situation seem better5.) catch some/a few rays informalto sit or lie in the sun▪ Let's go out and catch a few rays.6.) a large flat sea fish with a long pointed tail
Dictionary of contemporary English. 2013.