carob vs carob powder

carob and carob powder both are nouns.

Word	Noun	Adjective	Verb	Adverb
carob	Yes	No	No	No
carob powder	Yes	No	No	No

As nouns, carob and carob powder are synonyms defined as:

carob and carob powder: powder from the ground seeds and pods of the carob tree; used as a chocolate substitute

Other synonyms of carob include Saint-John's-bread.

carob (noun)	carob powder (noun)
powder from the ground seeds and pods of the carob tree; used as a chocolate substitute	powder from the ground seeds and pods of the carob tree; used as a chocolate substitute
evergreen Mediterranean tree with edible pods; the biblical carob
long pod containing small beans and sweetish edible pulp; used as animal feed and source of a chocolate substitute