conjugation vs compounding

conjugation and compounding both are nouns.

Word	Noun	Adjective	Verb	Adverb
conjugation	Yes	No	No	No
compounding	Yes	No	No	No

As nouns, compounding is a hypernym of conjugation; that is, compounding is a word with a broader meaning than conjugation:

Other hypernyms of conjugation include combination, combining.

conjugation (noun)	compounding (noun)
the act of pairing a male and female for reproductive purposes	the act of combining things to form a new whole
the act of making or becoming a single unit
a class of verbs having the same inflectional forms
the complete set of inflected forms of a verb
the inflection of verbs
the state of being joined together