1. adjective
Typical; having the same properties of interest as a larger group.
Are you sure this paper is representative of your childs writing?
2. noun
a) One who may speak for another in a particular capacity, especially in negotiation.
I will send a representative to work out the details of the contract.
b) A member of a legislative or governing body who represents a constituency.
She served four terms as representative of her local at the national union convention.
Wikipedia foundation.