First Known Use: 13th century
Dictionary
1diet
noun di·et \ˈdī-ət\
Definition of DIET
1
a : food and drink regularly provided or consumed b : habitual nourishment c : the kind and amount of food prescribed for a person or animal for a special reason d : a regimen of eating and drinking sparingly so as to reduce one's weight <going on a diet>
2
: something provided or experienced repeatedly <a diet of Broadway shows and nightclubs — Frederick Wyatt>
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Origin of DIET
Middle English diete, from Anglo-French, from Latin diaeta, from Greek diaita, literally, manner of living, from diaitasthai to lead one's life
2diet
verb
: to eat less food or to eat only particular kinds of food in order to lose weight : to be on a diet
Full Definition of DIET
transitive verb
1
: to cause to take food : feed
2
: to cause to eat and drink sparingly or according to prescribed rules
intransitive verb
: to eat sparingly or according to prescribed rules
— di·et·er noun
See diet defined for English-language learners
First Known Use of DIET
14th century
3diet
adjective
: having a smaller number of calories than usual
: intended to help people lose weight
Full Definition of DIET
1
: reduced in calories <a diet soft drink>
2
: promoting weight loss (as by depressing appetite) <diet pills>
See diet defined for English-language learners
First Known Use of DIET
1963
4diet
noun
Definition of DIET
1
: a formal deliberative assembly of princes or estates
2
: any of various national or provincial legislatures
Origin of DIET
Middle English diete day's journey, day set for a meeting, from Medieval Latin dieta, literally, daily regimen, diet (taken as a derivative of Latin dies day), from Latin diaeta
First Known Use: 1565
DIET[1] Defined for Kids
1diet
noun di·et \ˈdī-ət\
Definition of DIET for Kids
1
: the food and drink that a person or animal usually takes <a balanced diet>
2
: the kind and amount of food selected or allowed in certain circumstances (as poor health) <a low fat diet>
2diet
verb
di·et·eddi·et·ing
Definition of DIET for Kids
: to eat less or according to certain rules in order to lose weight
— di·et·er noun
3diet
adjective
Definition of DIET for Kids
: reduced in calories <a diet soft drink>
Learn More About DIET
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