representation

1. (by extension, uncountable) The appearance(s) of a particular demographic group in a piece of media, particularly in regards to how such appearances are treated.

2. (law) The lawyers and staff who argue on behalf of another in court.Examples: "People who cannot afford representation are eligible for government assistance."

3. (politics) The ability to elect a representative to speak on one's behalf in government; the role of this representative in government.Examples: "The lack of representation in the British parliament was one of the main factors behind the American Revolution."

4. (mathematics) An action of some algebraic structure (typically a group or algebra, particularly a Lie algebra) on a vector space, such that each element acts by a linear endomorphism.