The sword used in various styles of Chinese martial arts, including Kung Fu, is commonly referred to as a "jian." The term "jian" translates to "straight sword" in English and is one of the most iconic weapons in Chinese martial arts.

The jian is a double-edged, straight-bladed sword with a slender and flexible design. It typically features a hilt (grip) with a guard and a straight blade that tapers to a pointed tip. The length of the jian can vary, but it is generally shorter than a traditional European longsword.

The jian is known for its versatility, speed, and precision. It requires finesse and skill to wield effectively, with techniques that emphasize quick strikes, thrusts, and precise footwork. In Kung Fu, the jian is often utilized in solo forms, partner drills, sparring, and applications of sword techniques.

The jian has a rich cultural and historical significance in China, with its use dating back thousands of years. It represents a combination of martial skill, artistic expression, and embodies the principles of balance, harmony, and discipline.

It's important to note that while the term "jian" is commonly used to refer to the straight sword in Chinese martial arts, different styles and regions may have their own variations or names for specific sword types within the broader category of Chinese swords.