μου

In a sentence

• Αυτό είναι το βιβλίο μου.

  This is my book.

  The word "μου" (my) is used here as a possessive pronoun to indicate that the book belongs to the speaker.

• Μου μίλησε για την επίσκεψη.

  He/she spoke to me about the visit.

  Here, "μου" (to me) functions as an indirect object pronoun, indicating the recipient of the action of speaking.

• Η μητέρα μου μαγειρεύει κάθε μέρα.

  My mother cooks every day.

  In this sentence, "μου" (my) serves as a possessive pronoun, indicating that the described trait belongs to the speaker’s mother.