1. Vocative Case: This is a grammatical case used in some languages to mark a noun or pronoun that is being directly addressed. For example, in Latin, "Marcus, come here!" uses the vocative case for "Marcus" to indicate that he is being spoken to directly.
2. Direct Address: This is a broader term referring to any instance where someone is directly addressed in a text. It can be used in a variety of ways, from simple greetings to more complex forms of persuasion or argumentation. For example, "My dear friend, please listen to me."
3. "Call and Response" Texts: This concept refers to a type of text that involves a dialogue or exchange between two or more parties. This could be a spoken conversation, a written exchange, or even a musical piece. The "call" is the initial statement or question, and the "response" is the reaction or answer.
4. "Call to Action" Texts: This type of text aims to persuade the reader to take a specific action. It often uses direct address and emotional appeals to motivate the reader. For example, "Join us today and make a difference in the world!"
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