unitization vs packaging

unitization and packaging both are nouns.

Word	Noun	Adjective	Verb	Adverb
unitization	Yes	No	No	No
packaging	Yes	No	No	No

As nouns, packaging is a hypernym of unitization; that is, packaging is a word with a broader meaning than unitization:

unitization (noun)	packaging (noun)
conversion of an investment trust into a unit investment trust	the business of packing
the joint development of a petroleum resource that straddles territory controlled by different companies	material used to make packages
the act of packaging cargo into unit loads	a message issued in behalf of some product or cause or idea or person or institution
(psychology) the configuration of smaller units of information into large coordinated units