superannuate vs declare

superannuate and declare both are verbs.

Word	Noun	Adjective	Verb	Adverb
superannuate	No	No	Yes	No
declare	No	No	Yes	No

As verbs, declare is a hypernym of superannuate; that is, declare is a word with a broader meaning than superannuate:

Other hypernyms of superannuate include adjudge, hold.

superannuate (verb)	declare (verb)
retire or become ineligible because of old age or infirmity	state emphatically and authoritatively
become obsolete	state firmly
declare to be obsolete	make a declaration (of dutiable goods) to a customs official
retire and pension (someone) because of age or physical inability	declare to be
	announce publicly or officially
	proclaim one's support, sympathy, or opinion for or against
	designate (a trump suit or no-trump) with the final bid of a hand
	authorize payments of