Chilli pepper : The chilli pepper (also chile pepper, chilli pepper, or simply chilli ) from nahuatl chilli nahuatl pronunciation: (about this sound listen) is the fruit of plants from the genus capsicum, members of the nightshade family, solanaceae. They are widely used in many cuisines to add spiciness to dishes. The substances that give chilli peppers their intensity when ingested or applied topically are capsaicin and related compounds known as capsaicinoids. Product origin : india