short-change vs diddle

short-change and diddle both are verbs.

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

As verbs, diddle is a hypernym of short-change; that is, diddle is a word with a broader meaning than short-change:

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

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

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

short-change (verb)	diddle (verb)
cheat someone by not returning him enough money	manipulate manually or in one's mind or imagination
deprive of by deceit	deprive of by deceit