con vs short-change

con is a noun but short-change is not a noun.

Word	Noun	Adjective	Verb	Adverb
con	Yes	No	Yes	Yes
short-change	No	No	Yes	No

As verbs, con and short-change are synonyms defined as:

Other synonyms of con include bunco, defraud, diddle, goldbrick, hornswoggle, mulct, nobble, rook, scam, swindle, victimize.

As verbs, short-change is a hyponym of con; that is, short-change is a word with a more specific, narrower meaning than con:

Other hyponyms of con include short.

con (noun)	short-change (noun)
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

con (verb)	short-change (verb)
commit to memory; learn by heart	cheat someone by not returning him enough money
deprive of by deceit	deprive of by deceit

con (adverb)	short-change (adverb)
in opposition to a proposition, opinion, etc.