n.
1.an active and efficient cause
2.a substance that exerts some force or effect
3.a representative who acts on behalf of other persons or organizations
4.a businessman who buys or sells for another in exchange for a commission
5.any agent or representative of a federal agency or bureau
6.the semantic role of the animate entity that instigates or causes the hapening denoted by the verb in the clause
Idiom of the Day
take (something) on faith
to accept or believe something with little or no evidence
I took it on faith that the friend of my boss was an honest person.