any of a sub-family (Crocodylinae) of large, flesh-eating, lizard-like crocodilian reptiles living in or around tropical streams and having thick, horny skin composed of scales and plates, a long tail, and a long, narrow, triangular head with massive jaws; a crocodile.

the tree Trapa bispinosa of Trapaceae family; Indian water chestnut.

any danger, peril happened in or caused by, water.