a person who helps people or institutions (especially with financial help) | the means whereby some act is accomplished |
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose | a device that requires skill for proper use |
| any of various devices or contrivances that can be used to produce musical tones or sounds |
| (law) a document that states some contractual relationship or grants some right |
| the semantic role of the entity (usually inanimate) that the agent uses to perform an action or start a process |
| a person used by another to gain an end |