conglomerate vs combined

conglomerate is a noun but combined is not a noun.

Word	Noun	Adjective	Verb	Adverb
conglomerate	Yes	Yes	Yes	No
combined	No	Yes	No	No

conglomerate (noun)	combined (noun)
a group of diverse companies under common ownership and run as a single organization
a composite rock made up of particles of varying size

conglomerate (adjective)	combined (adjective)
composed of heterogeneous elements gathered into a mass	made or joined or united into one

conglomerate (verb)	combined (verb)
increase in amount by collecting or gathering