A two-handed sword is commonly referred to by several names, depending on the historical period, cultural context, or regional variations. Here are some terms used to describe a two-handed sword:

1. Greatsword: The term "greatsword" is often used to describe a large, two-handed sword. It implies the sword's size and prominence, emphasizing its role as a formidable weapon.
2. Zweihänder: "Zweihänder" is a German term meaning "two-hander." It specifically refers to a type of Renaissance-era sword known for its elongated blade and long grip, designed to be wielded with both hands.
3. Claymore: The term "claymore" is primarily associated with Scottish two-handed swords from the late medieval and Renaissance periods. It features a distinctive hilt design with a crossguard that curves towards the blade.
4. Dōtanuki: "Dōtanuki" is a term used in Japan to refer to two-handed swords that were used by samurai. These swords had a longer handle and were specifically designed for two-handed use.
5. Montante: "Montante" is a term used in Iberian countries, particularly in Spain and Portugal, to describe large two-handed swords used during the Renaissance. The montante featured a long blade and an extended handle to accommodate two-handed grip.
6. Spadone: "Spadone" is an Italian term used to describe a type of two-handed sword with a long blade and a hilt suitable for two-handed use. It was used during the Renaissance and can be associated with Italian schools of swordsmanship.

It's worth noting that the specific names for two-handed swords can vary across cultures, historical periods, and regions. Different terms may be used to describe swords with similar characteristics or styles of two-handed swords. The choice of terminology often depends on the historical context and the language or region in which the sword is being discussed.