canella vs bark

canella and bark both are nouns.

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

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

canella: 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 (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