English Reference

Word

diet

Phoneticsdi·et, stress on the first syllable

US/ˈdaɪət/

UK/dˈaɪət/

Definitions

01habitual food intake

A1 · Beginner Countable noun

n. the food and drink that a person or animal usually eats.

n. the kinds of food that a person, animal, or community habitually eats.

“A healthy diet should include plenty of fresh fruit and vegetables.”

“The traditional Mediterranean diet is characterized by a high consumption of olive oil, legumes, and unrefined cereals.”

Synonyms

02weight loss plan

A2 · Elementary Countable noun

n. a special plan where you eat specific foods to lose weight or improve your health.

n. a restricted or regulated course of food and drink, typically pursued for medical reasons or to reduce body weight.

“I am going on a diet because I want to lose five kilograms before summer.”

“After the check-up, the doctor advised him to start a low-sodium diet to help manage his blood pressure.”

03political assembly

C1 · Advanced Countable noun Law Formal

n. a formal meeting or assembly of leaders to discuss laws and government.

n. a formal deliberative assembly or legislative body in certain countries.

“The Japanese Diet passed a new law regarding environmental protection.”

“The historic Diet of Worms was a critical assembly that addressed the effects of the Protestant Reformation in the Holy Roman Empire.”

04to eat less to lose weight

B1 · Intermediate

v. to limit what you eat so that you can become thinner.

v. to restrict oneself to small amounts or special kinds of food in order to lose weight.

“She has been dieting for three weeks but hasn't lost much weight yet.”

“Many people find it difficult to continue dieting once the initial rapid weight loss begins to plateau.”

Synonyms

Antonyms

overeatbinge

05low-calorie

A2 · Elementary

adj. food or drink that has less sugar or fat than the normal version.

adj. referring to food or drink formulated to be low in calories, sugar, or fat.

“I prefer the taste of regular cola to the diet version.”

“The supermarket aisle was stocked with diet snacks that claimed to satisfy sugar cravings without the added calories.”

Synonyms

low-callightlite

Antonyms

full-fat

Usage

Countable when referring to a specific weight-loss plan or a particular culture's eating habits; uncountable when referring to the general concept of food consumption.

Pitfall

I am in a diet

I am on a diet

The preposition 'on' is used with 'diet' when referring to a weight-loss plan.

Word family

ADJECTIVE

Related words

Domains

GovernmentPolitics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Common
Level
A1 · BeginnerOxford
Updated

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