Part of speech: Noun
any agent or representative of a federal agency or bureau
Part of speech: Noun
a substance that exerts some force or effect
Part of speech: Noun
the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause
Part of speech: Noun
an active and efficient cause
Example: capable of producing a certain effect; their research uncovered new disease agents
Part of speech: Noun
a businessman who buys or sells for another in exchange for a commission
Part of speech: Noun
a representative who acts on behalf of other persons or organizations