Definitions
1.nounAnything arbitrary, such as an arithmetical value or a fee.
2.adjective(usually of a decision) Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random."Benjamin Franklin's designation of "positive" and "negative" to different charges was arbitrary."
3.adjectiveDetermined by impulse rather than reason; heavy-handed.
4.adjectiveAny, out of all that are possible."The equation is true for an arbitrary value of x."
5.adjectiveDetermined by independent arbiter.
6.adjectiveNot representative or symbolic; not iconic.