The definition of nominative is a position that is filled by someone being chosen, or something that has a person's name on it.
(adjective)An example of nominative is the position of U.S. president.
See nominative in Webster's New World College Dictionary
adjective
Origin: ME nomenatyf < OFr nominatif < L nominativus, belonging to a name < pp. of nominare: see nominate
noun
Origin: L nominativus (casus)
See nominative in American Heritage Dictionary 4
adjective
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