moon ray vs beam of light

moon ray and beam of light both are nouns.

Word	Noun	Adjective	Verb	Adverb
moon ray	Yes	No	No	No
beam of light	Yes	No	No	No

As nouns, beam of light is a hypernym of moon ray; that is, beam of light is a word with a broader meaning than moon ray:

Other hypernyms of moon ray include beam, irradiation, light beam, ray, ray of light, shaft, shaft of light.

moon ray (noun)	beam of light (noun)
a ray of moonlight	a column of light (as from a beacon)