I can think of another word that has it beat: "Fuck".

It can be used as a verb (Go fuck off!), noun (Stupid fuck!), adverb (He is fucking running?!?), adjective (He's suck a fucking boss!), interjection,(Fuck,...), a greeting (Well, Fuck man!), and a conjunction (Well I guess we have to, fuck, I'd hate to go there though.) and several manners of punctuation (stop, exclamation, full stop, and interragotory).