Trapa bicornis, commonly known as water chestnut or water caltrop, belongs to the Trapaceae family. It is a type of aquatic plant, and it is native to Asia and Africa. It bears fruits that resemble nuts, and they are used in various dishes and traditional medicines. Some common synonyms for Trapa bicornis are bullhead nut, devil's pod, buffalo nut, bat nut, ling nut, and Singhara. These synonyms are used interchangeably to refer to the plant or its fruits. Additionally, some cultures have their own names for the water chestnut, such as Pani Phal in Hindi, and Jesyut in Cantonese. Regardless of the name used, this aquatic plant plays an important role in many different cultures and cuisines around the world.