noun
diet
DEYE-uht
noun
1
The food and drink a person or animal regularly consumes.
"A balanced diet includes plenty of fruit and vegetables."
"Pandas survive almost entirely on a diet of bamboo."
2
A controlled eating plan followed to lose weight or improve health.
"She started a low-carb diet before the wedding."
adjective
1
Having reduced sugar, fat, or calories compared to the standard version.
"He ordered a diet soda with his lunch."
verb
1
To eat according to a controlled plan, usually to lose weight.
"He’s been dieting for months to get ready for the marathon."
How to Use Diet
Learner’s notesIn plain EnglishWhat you eat day to day, or a special eating plan meant to change your weight or health.
Common pairings
a healthy diet
go on a diet
diet soda
Word Forms
dieted past tense, diets plural, diets plural, diets singular
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Etymology
From Old French diete, from Latin diaeta, ultimately from Greek díaita, meaning "way of living" or "regimen."