Cumin is an aromatic plant. Its seeds are used on many occasions around the world. It is common in blends of spices like curry, Colombo or ras-el-hanout. You can find it in cheeses like Edam and Gouda in the Netherlands, and it seasons many typical regional dishes such as couscous, tajine, chili con carne, empanadas, etc.
Your cooking can also use both whole cumin seeds and ground cumin. Its hot and spicy, slightly bitter flavour pairs ideally with vegetables (carrots and cabbage in particular), lamb, chicken, fish, and sauces.