form of address vs designation

form of address and designation both are nouns.

Word	Noun	Adjective	Verb	Adverb
form of address	Yes	No	No	No
designation	Yes	No	No	No

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

form of address: an identifying appellation signifying status or function: e.g. `Mr.' or `General'
designation: identifying word or words by which someone or something is called and classified or distinguished from others

Other hypernyms of form of address include appellation, appellative, denomination.

form of address (noun)	designation (noun)
an identifying appellation signifying status or function: e.g. `Mr.' or `General'	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