tannic acid vs cutch

tannic acid and cutch both are nouns.

Word	Noun	Adjective	Verb	Adverb
tannic acid	Yes	No	No	No
cutch	Yes	No	No	No

As nouns, cutch is a hyponym of tannic acid; that is, cutch is a word with a more specific, narrower meaning than tannic acid:

tannic acid: any of various complex phenolic substances of plant origin; used in tanning and in medicine
cutch: tannin extract derived from any of several mangrove barks of Pacific areas

Other hyponyms of tannic acid include kutch, catechin.

tannic acid (noun)	cutch (noun)
any of various complex phenolic substances of plant origin; used in tanning and in medicine	tannin extract derived from any of several mangrove barks of Pacific areas