Contingency
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
An event which may or may not occur; that which is possible or probable; a fortuitous event; a chance.
82 111. App. 526.
A contingency has the element of uncertainty and doubt, and is defined as an event which is possible but which may or may not occur, in the nature of a casualty, accident, or chance, and results from an agency the operation of which is uncertain; dependent upon a possibility and on causes which are undetermined or unknown.
231 111. 127.
CONTINGENCY WITH DOUBLE Aspect. If there are remainders so limited that the second is a substitute for the first in case it should fail and not in derogation of it, the remainder is said to be in a contingency with double aspect.
Pearne, Cont. Rem. 373.