unitize vs unit

unitize is not a noun while unit is a noun.

Word	Noun	Adjective	Verb	Adverb
unitize	No	No	Yes	No
unit	Yes	No	No	No

unitize (noun)	unit (noun)
	an assemblage of parts that is regarded as a single entity
	a single undivided whole
	an organization regarded as part of a larger social group
	a single undivided natural thing occurring in the composition of something else
	any division of quantity accepted as a standard of measurement or exchange
	an individual or group or structure or other entity regarded as a structural or functional constituent of a whole

unitize (verb)	unit (verb)
separate or classify into units
make into a unit
divide (bulk material) and process as units