cask vs containerful

cask and containerful both are nouns.

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

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

cask (noun)	containerful (noun)
a cylindrical container that holds liquids	the quantity that a container will hold
the quantity a cask will hold