Pronunciation: (vok'u-tiv),[key] —adj. 1. Gram.(in certain inflected languages, as Latin) noting or pertaining to a case used to indicate that a noun refers to a person or thing being addressed.
2. of, pertaining to, or used in calling, specifying, or addressing.
—n.Gram. 1. the vocative case.
2. a word in the vocative, as Latin Paule “O Paul.”