A few questions about "becoming"

How is "becoming" (bhava) defined in the context of Dependent Co-arising? If there is craving, will that craving always result in "becoming"? Is there something like craving without "becoming"? Thanks for your time and patience! EDIT: as I made the mistake of asking more than one question in the same post, I have two different answer (1231546 and Dhammadhatu's) which dissipated my doubts. Thanks!