The term 'Asian Bean' refers to a type of legume that is widely used in Asian cuisine. The most common varieties are soya, SOY, and soyas. Soya is a four-letter word that refers to a type of bean that is native to East Asia and is used to make a variety of products, including tofu, tempeh, and miso. SOY is a three-letter word that is used to refer to the same type of bean, but it is also used to describe products made from the bean, such as SOY sauce and SOY milk. Soyas is a five-letter word that is used to refer to a type of bean that is similar to soya, but is not as widely used in Asian cuisine.