I know I heard a term for nouns of direct address when I did French grammar in HS, but I can't for the life of me think what we call one in French. Examples:
Jean, pourrais-tu me donner le dictionnaire ?
Écoutez mes paroles, les amis.
Marie, tu viens de me le donner.
Sorry, I know it's a really basic question but it's escaping my brain right now.