front some amount of money
1. verb To pay for some item or service before it is rendered. Don't front too much money for Richie's latest scheme—it's bound to fail, like all the others. I had to front the dealer $2,000 for my new car.
2. verb, slang To confront or accost someone. I wouldn't front those guys, they're dangerous!
3. verb, slang To act inauthentically; to put on a front. A: "Kelly's no party girl, so I don't know why she feels like she has to front." B: "Probably so those dumb sorority girls will like her."
4. noun Something reputable that hides underhanded or illegal activities. You know their restaurant is just a front, right? Those guys are really in the mob.
5. noun A manner of inauthentic behavior. You don't have to put up a front for me, I'm your best friend—you can tell me how you're really feeling.
front someone some amount of money
to provide an advance payment of some amount to someone. The buyer fronted me half the purchase price as a favor.