In Japanese cuisine, sushi is vinegared rice, usually topped with other ingredients, including fish dishes. In Japan, sliced raw fish alone is called sashimi and is distinct from sushi, as sashimi is the raw fish component, not the rice component. The word sushi itself comes from an archaic grammatical form of a word that is no longer used in other contexts; literally, "sushi" means "it's sour".
There are various types of sushi: sushi served rolled inside nori called makizushi or rolls; sushi made with toppings laid with hand-formed clumps of rice called nigirizushi; toppings stuffed into a small pouch of fried tofu called inarizushi; and toppings served scattered over a bowl of sushi rice called chirashi-zushi
