As a Noun:
1. A person who prepares and cooks food, often as a job. English = cook, chef.
2. The preparation of food to be eaten. English = cooking.
3. A large box-shaped device which provides heat for cooking food. English = stove, cooker.
As a Verb or Adjective:
1. To prepare food for eating and then heat it, for example in an oven or in a saucepan. English = cook.