Hadley, 'DOWN'

I taught her another command.  I found little chicken flavored biscuits that she likes but they still take too long to chew for training purposes so it was back to the cheese.  I may have screwed up, though, because I didn't teach her LIE DOWN, just DOWN.  But...what do I say to get her to stop jumping?  I'll have to come up with another word since DOWN to her now means flat on the ground on her belly with her front paws out.  It's cool when she finally understands something, though :)