This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. An event that may occur but that is not likely or intended; a possibility.

n. A possibility that must be prepared for; a future emergency.

n. The condition of being dependent on chance; uncertainty.

n. Something incidental to something else.

n. An amount of money which a party to a contract has to pay to the other party (usually the supplier of a major project to the client) if he or she does not fulfill the contract according to the specification.

n. A statement which is neither a tautology nor a contradiction.

n. Union or connection; the state of touching or contact.

n. The quality or state of being contingent or casual; the possibility of coming to pass.

n. An event which may or may not occur; that which is possible or probable; a fortuitous event; a chance.

n. An adjunct or accessory.

n. A certain possible event that may or may not happen, by which, when happening, some particular title may be affected.

n. The mode of existence of that which is contingent; the possibility that that which happens might not have happened; that mode of existence, or of coming to pass, which does not involve necessity; a happening by chance or free will; the being true of a proposition which would not under all circumstances be true.

n. A casualty; an accident; a fortuitous event, or one which may or may not occur.

n. A touching; a falling together; contact: as, “the point of contingency,”

n. In biometry, a method of studying statistically biological data that do not admit of numerical expression.

n. a possible event or occurrence or result

n. the state of being contingent on something

"The U.S. government depends heavily on what it calls "contingency contracting" to support the war effort in Iraq and Afghanistan."

necessity   

occurrent    happening    occurrence    natural event    dependency    dependance    dependence   

condition    angle of contingence   

accident    chance    casualty    possibility    option   

stringency   

catastrophe    emergency    occurrence    calamity    happen    outcome    mishap    complication    obstacle    scenario