tank vs containerful

tank and containerful both are nouns.

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

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

tank (noun)	containerful (noun)
a large (usually metallic) vessel for holding gases or liquids	the quantity that a container will hold
an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
a freight car that transports liquids or gases in bulk
a cell for violent prisoners
as much as a tank will hold

tank (verb)	containerful (verb)
treat in a tank
consume excessive amounts of alcohol
store in a tank by causing (something) to flow into it