canella bark vs bark

canella bark and bark both are nouns.

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

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

canella bark: highly aromatic inner bark of the Canella winterana used as a condiment and a tonic
bark: tough protective covering of the woody stems and roots of trees and other woody plants

canella bark (noun)	bark (noun)
highly aromatic inner bark of the Canella winterana used as a condiment and a tonic	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