1. [adjective] (informal) In progress, happening.
2. [noun] The process of preparing food by using heat.
3. [noun] (by extension) The process of preparing food.
4. [noun] (by extension) The result of that process, a meal.
5. [noun] The style or genre of food preparation; cookery.
6. [verb] Present participle of cook
7. [noun] The act of preparing something (as food) by the application of heat; 'cooking can be a great art'; 'people are needed who have experience in cookery'; 'he left the preparation of meals to his wife'.