Glossary of Linguistic Terms

Agent As A Semantic Role

Definition: 

Agent is the semantic role of a person or thing who is the doer of an event.

Discussion: 

An agent is usually the grammatical subject of the verb in an active clause. A prototypical agent is conscious, acts with volition (on purpose), and performs an action that has a physical, visible effect.

Examples: 

(English)

  • The boy ran down the street.
  • He was chased by the dog.
Source: 
199–203
156–157