chittam bark vs bark

chittam bark and bark both are nouns.

Word	Noun	Adjective	Verb	Adverb
chittam bark	Yes	No	No	No
bark	Yes	No	Yes	No

As nouns, bark is a hypernym of chittam bark; that is, bark is a word with a broader meaning than chittam bark:

chittam bark: dried bark of the cascara buckthorn used as a laxative
bark: tough protective covering of the woody stems and roots of trees and other woody plants

chittam bark (noun)	bark (noun)
dried bark of the cascara buckthorn used as a laxative	a sailing ship with 3 (or more) masts
	the sound made by a dog
	a noise resembling the bark of a dog
	tough protective covering of the woody stems and roots of trees and other woody plants