moniker vs designation

moniker and designation both are nouns.

Word	Noun	Adjective	Verb	Adverb
moniker	Yes	No	No	No
designation	Yes	No	No	No

As nouns, designation is a hypernym of moniker; that is, designation is a word with a broader meaning than moniker:

moniker: a familiar name for a person (often a shortened version of a person's given name)
designation: identifying word or words by which someone or something is called and classified or distinguished from others

Other hypernyms of moniker include appellation, appellative, denomination.

moniker (noun)	designation (noun)
a familiar name for a person (often a shortened version of a person's given name)	the act of putting a person into a non-elective position
	the act of designating or identifying something
	identifying word or words by which someone or something is called and classified or distinguished from others