The three main parts of a sword are the blade, the hilt, and the pommel. These components work together to form the complete structure of the sword. Here is a brief description of each part:

1. Blade: The blade is the elongated, typically metal, portion of the sword that extends from the hilt to the tip. It is the primary cutting and thrusting part of the weapon. Blades can vary in length, shape, and construction depending on the specific type of sword and its intended use. The blade may feature a sharp edge or edges, a point, and sometimes additional features like fullers or blood grooves.
2. Hilt: The hilt is the handle or gripping portion of the sword. It is designed to provide a secure and comfortable grip for the wielder. The hilt consists of several components, including the grip, guard, and sometimes additional elements like the pommel. The hilt's purpose is to allow the wielder to control and manipulate the sword effectively during combat while offering protection for the hand.
3. Pommel: The pommel is the weight at the end of the hilt, opposite the blade. It serves to counterbalance the weight of the blade, helping to improve the sword's overall balance. Pommels can vary in size, shape, and design, ranging from simple rounded forms to more decorative or intricate shapes. The pommel also acts as a way to secure the hilt components together.

Together, these three parts—the blade, hilt, and pommel—form the complete structure of a sword. Each part plays a significant role in the sword's functionality, balance, and overall design.