Theta Role (definition)
A concept in generative grammar, which is representative of the arguments required by different types of verbs. Different verbs, IE: transitive, instranstive,ditransitive, etc require subjects, or subjects and objects,or subjects, objects, and indirect objects, and so on. Each of these arguments has a designated theta role which specifies its particular semantic relation to the verb and to other words in the sentence. Examples of theta roles include: agent, experiencer, goal, source, etc.
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- Carnie, A. (2006) Syntax: A Generative Introduction. 2nd Edition. Wiley-Blackwell.