diddle vs con

diddle is not a noun while con is a noun.

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

As verbs, diddle and con are synonyms defined as:

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

diddle (noun)	con (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

diddle (verb)	con (verb)
manipulate manually or in one's mind or imagination	commit to memory; learn by heart
deprive of by deceit	deprive of by deceit

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