soya milk vs soybean milk

soya milk and soybean milk both are nouns.

Word	Noun	Adjective	Verb	Adverb
soya milk	Yes	No	No	No
soybean milk	Yes	No	No	No

As nouns, soya milk and soybean milk are synonyms defined as:

soya milk and soybean milk: a milk substitute containing soybean flour and water; used in some infant formulas and in making tofu

Other synonyms of soya milk include soymilk.

soya milk (noun)	soybean milk (noun)
a milk substitute containing soybean flour and water; used in some infant formulas and in making tofu	a milk substitute containing soybean flour and water; used in some infant formulas and in making tofu