Cooker (noun)

1. A device or appliance for cooking food.
2. A person who cooks food.

Origin:

Late 16th century: from cook + -er.

Examples:

1. The cooker was used to boil the water.
2. She was a good cooker and made delicious meals.
3. The pressure cooker cooked the food in half the time.
4. The cooker was a gas stove and oven combination.
5. The cooker was a slow cooker, perfect for stew and soups.