–noun
1.
food and drink considered in terms of its qualities, composition, and its effects on health: Milk is a wholesome article of diet.
2.
a particular selection of food, esp. as designed or prescribed to improve a person's physical condition or to prevent or treat a disease: a diet low in sugar.
3.
such a selection or a limitation on the amount a person eats for reducing weight: No pie for me, I'm on a diet.
4.
the foods eaten, as by a particular person or group: The native diet consists of fish and fruit.
5.
food or feed habitually eaten or provided: The rabbits were fed a diet of carrots and lettuce.
6.
anything that is habitually provided or partaken of: Television has given us a steady diet of game shows and soap operas.