lifer vs con

lifer and con both are nouns.

Word	Noun	Adjective	Verb	Adverb
lifer	Yes	No	No	No
con	Yes	No	Yes	Yes

As nouns, con is a hypernym of lifer; that is, con is a word with a broader meaning than lifer:

Other hypernyms of lifer include convict, inmate, yard bird, yardbird.

lifer (noun)	con (noun)
a prisoner serving a term of life imprisonment	a swindle in which you cheat at gambling or persuade a person to buy worthless property
	an argument opposed to a proposal
	a person serving a sentence in a jail or prison

lifer (verb)	con (verb)
	commit to memory; learn by heart
	deprive of by deceit

lifer (adverb)	con (adverb)
	in opposition to a proposition, opinion, etc.