Rapier

Description
A rapier is a slender, sharply pointed sword, used mainly for thrusting and piercing attacks. It is favored by many fencers and duelists alike. As light blades, rapiers are of a similar size to short swords but are more deadly in the hands of those properly trained.

Use
In D&D 3rd edition, rapiers are martial weapons and can only be used without penalty with the martial weapons feat. In 3.5 edition the rapier is listed as a one-handed melee weapon, not a light weapon.