Steve,
You need to list more detail about your faucet. ie. Is it a single handle or two handle? What is the manufacture and how old is it?
If it is a older two handle you might check to make sure the bottom bibb gasket didn’t fall or break off and is jammed in the closed position.
Then try first turning off the water and remove the stem or cartridge and slowly turn the shut off valve on to see if you are getting any water through the faucet. This will tell you if your problem is in the stem or the body of the faucet itself.
I hope this helps!