A name used to clandestinely identify somebody or something, either for military or espionage purposes, or for commercial confidentiality.
That by which anything is denominated or styled; an epithet; a name, designation, or title; especially, a general name indicating a class of like individuals.
A unit in a series of units of weight, money, etc.
A class, or society of individuals, called by the same name; a subdivision of a religion.
The act of naming or designating.