barrel vs containerful

barrel and containerful both are nouns.

Word	Noun	Adjective	Verb	Adverb
barrel	Yes	No	Yes	No
containerful	Yes	No	No	No

As nouns, containerful is a hypernym of barrel; that is, containerful is a word with a broader meaning than barrel:

barrel (noun)	containerful (noun)
a cylindrical container that holds liquids	the quantity that a container will hold
a tube through which a bullet travels when a gun is fired
any of various units of capacity
the quantity that a barrel (of any size) will hold
a bulging cylindrical shape; hollow with flat ends

barrel (verb)	containerful (verb)
put in barrels