That which distinguishes; a single occurrence of a determining factor or feature, the fact of being divided; separation, discrimination.
The act of distinguishing, discriminating; discrimination.
Specifically, a feature that causes someone or something to stand out as being better; a mark of honour, rank, eminence or excellence; being distinguished.
Not known; unidentified; not well known.
A variable (usually x, y or z) whose value is to be found.
A person of no identity; a nonentity
Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.