diners

IPA/ˈdaɪ.nər/
KK[dˈaɪnɚz]IPA/ˈdaɪ.nɚ/

diners — noun

  • dinerssingular
  • dinersesplural

1. People who are having a meal, especially at a restaurant, café, or other food-se

1.nounB1
Definition

People who are having a meal, especially at a restaurant, café, or other food-service place.

Example

The waiter brought coffee to the two diners sitting in the corner booth.

countable noun: diners + prepositional phrase for location

Jabari glanced around the room and noticed that most diners had nearly finished their meals.

Common collocations
  • fellow diners
  • other diners
  • most diners
  • diner's meal
Synonyms
  • customer

    broader term — a customer buys something but may not eat on site

  • patron

    more formal, refers to a regular visitor of a restaurant or establishment

  • guest

    common in restaurant-industry language, implies being served or invited

Grammar Patterns

diners + verb

diners + prepositional phrase

Usage Note

This sense is almost always used in the plural form, since the word describes people in a group setting. The singular 'a diner' is less common and refers to one specific person eating.

Common Mistakes

The restaurant was full of customers eating dinner.
The restaurant was full of diners eating dinner.
'Customer' focuses on the act of buying; 'diner' specifically describes someone in the middle of a meal.

2. A casual, low-cost restaurant common in the United States, typically located nea

2.nounB1
Definition

A casual, low-cost restaurant common in the United States, typically located near roads or highways, with a long menu of classic American dishes and often a long counter with stools.

Example

Théo stopped at a roadside diner and ordered a cheese omelette and coffee.

countable noun: at + a + descriptive adjective + diner

Most small-town diners in the US serve pancakes, burgers, and apple pie all year round.

Common collocations
  • roadside diner
  • all-night diner
  • local diner
  • diner food
  • diner counter
Synonyms
  • café

    similar in being casual, but a café focuses more on coffee and light meals

  • dive bar/restaurant

    informal US term; 'dive' implies the place is run-down but friendly

  • greasy spoon

    very informal British/US term for a cheap, basic eating place

Grammar Patterns

at/in a diner

diner + serves/has/offers

Usage Note

Frequently modified by location adjectives: 'roadside diner', 'all-night diner', 'local diner', 'neighbourhood diner'. The word carries a distinctly American cultural meaning — a 'diner' in the UK or Australia usually refers to the person eating, not the restaurant.

Common Mistakes

We booked a table at an expensive diner for our anniversary.
We booked a table at a nice restaurant for our anniversary.
A diner is casual and low-cost; use 'restaurant' for formal or expensive dining.

3. A train carriage that is equipped with tables, seating, and a kitchen so passeng

3.nounB2
Definition

A train carriage that is equipped with tables, seating, and a kitchen so passengers can buy and eat meals while travelling.

Example

Arjun walked three carriages ahead to the diner to buy a sandwich and a drink.

definite article: the + diner (unique to the train)

The long-distance train had two diners, one for each class of passenger.

Common collocations
  • train diner
  • railway diner
  • diner carriage
Synonyms

Grammar Patterns

in the diner

the train's diner

Usage Note

Often interchangeable with 'dining car', though 'diner' is shorter and more informal. In modern trains these carriages are giving way to café-bar cars, so the term is most commonly encountered in descriptions of older or classic rail journeys.

Common Mistakes

A diner pulled up beside the park and started selling tacos.
A food truck pulled up beside the park and started selling tacos.
'Diner' as a railway carriage is not the same as a mobile food truck, even though 餐車 in Chinese can mean food truck.

Word family

Synonym discussion

Sense: noun/1

All four words can describe people in a restaurant, but they highlight different roles. 'Diner' focuses on the act of eating a meal — you are a diner from the moment you sit down to eat until you finish. 'Customer' is broader: a person who buys a coffee to-go is a customer but not a diner. 'Guest' is the term the restaurant industry uses to frame the relationship as hospitality rather than commerce; hotels and fine-dining establishments prefer 'guest'. 'Patron' is more formal and often implies regular or long-standing support of a place: 'a patron of the arts' or 'a loyal patron of the local café'. In everyday speech, say 'diner' when someone is eating at a table; say 'customer' when the focus is on the transaction; and say 'guest' in polite restaurant language or formal reviews.

diners ↗customers ↗guests ↗patrons ↗

Common collocations

Prepositions

  • at a diner
  • in the diner

Etymology

LatinOld FrenchEnglish

The word 'diner' grew from the verb 'dine', which came into English from Old French 'disner' (meaning 'to have the first meal of the day', from Latin 'disjejunare' — 'to break the fast'). The suffix '-er' turns the action into a person ('someone who dines'). Around the late 1800s, 'diner' also began to mean the place itself — first used for the dining car of a train, and later (mid-1900s) for the roadside restaurants in the US that were often built to look like those train cars, creating a link between the two meanings.

First known use

1815

1815, in the meaning defined at sense 1