A "Friendship Letter" is a personal written communication between friends that expresses feelings, thoughts, and experiences. It often includes shared memories, inside jokes, and words of encouragement, helping to strengthen the bond between the individuals. These letters can be handwritten or typed and are typically sent through traditional mail or email. Writing a friendship letter can be a meaningful way to reconnect with a friend, especially if they live far away. It allows the sender to reflect on their relationship and convey appreciation for the friendship. Many people cherish these letters as keepsakes, making them a special part of their friendship history.