vocative
noun/ˈvɒkətɪv/
/ˈvɑːkətɪv/
(grammar)- (in some languages) the form of a noun, a pronoun or an adjective used when talking to a person or thing compare ablative, accusative, dative, genitive, instrumental (2), locative, nominativeTopics Languagec2Word Originlate Middle English: from Old French vocatif, -ive or Latin vocativus, from vocare ‘to call’.
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vocative