D defs.my
Entry 2 senses · 2 variants Webster, 1913

Vocative

/väk'ətĭv/ · Voc·a·tive · IPA /ˈvɑkətɪv/
01 a. Of or pertaining to calling; used in calling; specifically (Gram.), used in address; appellative; -- said of that case or form of the noun,…
  1. 1.
    Of or pertaining to calling; used in calling; specifically (Gram.), used in address; appellative; -- said of that case or form of the noun, pronoun, or adjective, in which a person or thing is addressed; as, Domine, O Lord.(Gram.)
02 n. The vocative case.
  1. 1.
    The vocative case.(Gram.)