noun The food and beverage a person or animal consumes.
The diet of the giant panda consists mainly of bamboo.
noun A controlled regimen of food and drink choices, as to gain or lose weight or otherwise influence health.
He's been on a diet since he found out that he has coronary atherosclerosis.
noun Any habitual intake or consumption.
He's been reading a steady diet of nonfiction for the last several years.
adjective Containing less fat, salt, sugar, or calories than normal, or claimed to have such.
diet soda
adjective Having certain traits subtracted.
You folks reduce it to the bible only as being authoritative, impoverishing the faith. "Christianity Lite", diet Christianity for those who can't handle the Whole Meal.
verb To modify one's food and beverage intake so as to decrease or increase body weight or influence health.
I've been dieting for six months, and I've lost some weight.
verb To regulate the food of (someone); to put on a diet.