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Definition of “first class” - English Dictionary

"first class" in American English

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first classnoun [U]

 /ˈfɜrst ˈklæs/
the best group or class, esp. the most expensive seats on a plane or a train: I upgraded my plane ticket to first class from tourist class.

first-classadjective

 /ˈfɜrstˈklæs/
  • first-class adjective (QUALITY)

of the highest quality or standard: a first-class education
  • first-class adjective (MAIL)

of or having to do with the standard way of mailing letters and cards: The price of a first-class stamp has gone up again.
(Definition of first class from the Cambridge Academic Content Dictionary © Cambridge University Press)







"first class" in British English

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first classadjective

(also first-class) uk   /ˌfɜːst ˈklɑːs/  us   /ˌfɝːst ˈklæs/
  • first class adjective (QUALIFICATION)

used to refer to the best possible undergraduate university degree you can get in the UK and some other countries
  • first class adjective (MOST EXPENSIVE)

relating to the most expensive and highest quality service on a plane or train, or in a hotel: a first-class ticket first-class accommodation/travel
relating to the service for sending post that people usually use: first-class mail/postage How much is a first-class stamp?

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first classadverb

uk   /ˌfɜːst ˈklɑːs/  us   /ˌfɝːst ˈklæs/
If you travel first class in a train, aircraft, etc., you use the best and most expensive type of service: She always travels first class.
UK If you send something first class, you send it by the usual post service: How much more would it cost to send it first class?

first classnoun [U]

uk   /ˌfɜːst ˈklɑːs/  us   /ˌfɝːst ˈklæs/
the best and most expensive seats on a plane or in a train: Because of the delay, we were offered seats in first class.
UK the post service that most people use for sending letters, etc.: First class costs more, but it will arrive tomorrow.

expend iconexpend iconMore examples

(Definition of first class from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

"first class" in Business English

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first classadjective

uk   us  
of excellent quality: The work that she did on the project was first class. He really is pre-eminent in the field and has built up a first-class business.
TRANSPORT relating to the highest level of service offered on a plane, train, etc.: a first-class cabin/fare/seat, etc.
in the UK, relating to the fastest service for sending mail: It is welcome news that first-class delivery has improved. The cost of a first-class stamp is going up.
in the US, relating to the service used for sending letters, cards, and small packages: He predicts first-class volume will decline by 20 percent by the year 2017 as fewer people sit down to write a letter. Experts expect that the U.S. Postal Service soon will request a price increase for first-class letters.
used to describe the best possible degree you can get from a university in the UK: A report showed that a first-class degree is worth, on average, 12% more in likely future earnings.

first classadverb

uk   us  
TRANSPORT using the highest level of service offered: fly/travel first class I fly business class; I don't fly first class.
using the fastest service for sending mail: The minimum requirement is that certificates must be sent first class to the shareholder's registered address.

first classnoun [U]

uk   us  
the best seats, service, etc. on a plane, train, etc.: I didn't see him on the flight because he was in first class.
in the UK, the fastest service for sending mail: Always use first class for sending these documents.
in the US, the service for sending letters, cards and small packages
(Definition of first class from the Cambridge Business English Dictionary © Cambridge University Press)
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