someone who visits stores in search of articles to buy | the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause |
a commercial agent who shops at the competitor's store in order to compare their prices and merchandise with those of the store that employs her | an active and efficient cause; capable of producing a certain effect |
| a businessman who buys or sells for another in exchange for a commission |
| a representative who acts on behalf of other persons or organizations |
| any agent or representative of a federal agency or bureau |
| a substance that exerts some force or effect |