The Japanese word for "belt" can be expressed in different ways, but some of the most common ones are:

• 三尺帯 (さんしゃくおび, sanshakuobi): This is an old-fashioned term that refers to a cloth girdle or waistband.
• ベルト (beruto): This is a loanword from English that is commonly used to refer to a belt made of leather, fabric, or other materials.
• 下紐 (したびも, shitabimo): This is another term that can be used to refer to a belt, especially one that is worn around the waist to hold up a kimono or other traditional clothing.

Its worth noting that the choice of word may depend on the context and the type of belt being referred to.