(1):
(a.) 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.
(2):
(n.) The vocative case.
A timeless resource no serious scholar should be without. With more than 75,000 entries, if it is a word used in the Bible, you are sure to find it defined here.Wikipedia
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