Contingency

1. An adjunct or accessory.
2. A certain possible event that may or may not happen, by which, when happening, some particular title may be affected.
3. An event which may or may not occur; that which is possible or probable; a fortuitous event; a chance.
4. Union or connection; the state of touching or contact.
5. The quality or state of being contingent or casual; the possibility of coming to pass.