The two swords commonly associated with a samurai are the katana and the wakizashi. This pair of swords is known as the "daisho," which means "big-small" or "long-short" in Japanese.

1. Katana: The katana is the longer sword of the daisho pair. It has a curved, single-edged blade and a traditionally wrapped handle called the tsuka. The katana is the primary and most iconic weapon of the samurai, measuring around 60 to 80 centimeters (24 to 31 inches) in blade length. It was primarily used for cutting and slashing techniques on the battlefield.
2. Wakizashi: The wakizashi is the shorter sword of the daisho. It also has a curved, single-edged blade and a handle similar to the katana. The wakizashi typically measures around 30 to 60 centimeters (12 to 24 inches) in blade length. It served as the samurai's backup weapon or sidearm, often used in close-quarters combat or indoor settings where the longer katana was impractical.

The daisho, comprising the katana and wakizashi, held significant cultural and social importance in feudal Japan. It was a symbol of a samurai's status, representing their social rank and the code of bushido (the way of the warrior) that governed their behavior. The right to wear the daisho was often restricted to samurai or specific ranks within the social hierarchy.

Wearing the daisho was also regulated by etiquette and indicated the samurai's readiness for combat, self-defense, or service to their lord. The daisho's distinct design and combination of swords represented the samurai's preparedness for various situations and demonstrated their adherence to the samurai code.

Today, the daisho continues to be admired as a symbol of the samurai's martial prowess, honor, and dedication to their way of life. It is often collected, displayed, or used in martial arts training, preserving its historical and cultural significance.