If a sword is described as "full tang," it means that the tang extends the full length of the handle. The tang refers to the portion of the blade that extends into the hilt or handle of the sword.

In a full tang construction, the tang is a solid, continuous piece of metal that runs the entire length of the handle, from the blade's base to the pommel. It provides strength, stability, and durability to the sword.

Having a full tang is considered desirable in a sword as it ensures a strong and secure connection between the blade and the handle. A full tang construction provides better balance, durability, and reduces the risk of the sword breaking or becoming loose during use.

Full tang swords are generally known for their strength and reliability, making them suitable for combat, martial arts practice, or heavy-duty use. They are less prone to breaking or becoming damaged compared to swords with partial tangs or rat-tail tangs, where the tang tapers significantly or only extends partially into the handle.

The full tang construction allows for a solid grip and better control of the sword, as it distributes the forces and vibrations generated during use more evenly throughout the entire handle.

It's worth noting that not all swords are full tang. Some swords, especially those designed for decorative or ceremonial purposes, may have partial tangs, hidden tangs, or other construction methods that prioritize aesthetics over functionality. However, for swords intended for practical use, a full tang construction is generally considered preferable.