1.Definition: (law) a document that states some contractual relationship or grants some right

Category: General

2.Definition: a device that requires skill for proper use

Category: Objects

3.Definition: a person used by another to gain an end

Related Noun(s):pawn

Category: People

4.Definition: any of various devices or contrivances that can be used to produce musical tones or sounds

Category: Objects

5.Definition: the means whereby some act is accomplished

"My greed was the instrument of my destruction", "Science has given us new tools to fight disease"

Related Noun(s):tool

Category: General

6.Definition: the semantic role of the entity (usually inanimate) that the agent uses to perform an action or start a process

Category: General