A friendly letter is an informal letter you write to someone you know well, like a friend, family member, or classmate. It usually has a warm, conversational tone and is used to share news, ask questions, or stay in touch.

Main parts

A friendly letter usually includes these parts in order: heading, salutation, body, closing, and signature. The heading often has the date and sometimes your address, the salutation might say “Dear Sam,” and the body is where you write your message.

Example purpose

People write friendly letters to say hello, give updates, thank someone, apologize, congratulate, or ask how the other person is doing. The goal is to sound personal, kind, and relaxed rather than formal.

Simple example

You could begin like this: “Dear Maya, I hope you’re doing well. I wanted to tell you about my trip last weekend…” That kind of opening makes the letter feel friendly and natural.

Tl;dr

A friendly letter is just a personal, informal letter to someone you know, written in a warm and conversational way.