A provable claim in bankruptcy that may or may not become a debt depending upon the result of some future event.
A claim, debt or obligation arising from involvement in a transaction that may or may not become due at a future date: for example, co-signing a loan and the principal defaults.
A claim that may be owed by the debtor under certain circumstances, e.g., where the debtor is a cosigner on another person's loan and that person fails to pay.