(in Chomskyan linguistics) any of a set of semantic roles that a noun phrase may have in relation to a verb, for example agent, patient, location, source, or goal.
（乔姆斯基语言学用语）语义角色。亦称THETA ROLE
Also called theta role
Example sentencesExamples
A discussion of thematic roles is closely linked to one of the most complex questions ever: what is meaning?
A number of verbs belonging to each category are analyzed in terms of the thematic roles and grammatical relations undertaken by the noun phrases required by these verbs.