Temporarily assuming the duties or authority of another person when they are unable to do their job.
Pretending.
The occupation of an actor.
Something done by a party — so called to avoid confusion with the legal senses of deed and action.
Possible or liable, but not certain to occur.
Dependent on something that is undetermined or unknown, that may or may not occur.
Not logically necessarily true or false.
Temporary.
That which falls to one in a division or apportionment among a number; a suitable share.
A quota of troops.
An event which may or may not happen; that which is unforeseen, undetermined, or dependent on something future.