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English definition of “first-class”

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first-class

adjective
 
 
/ˌfɜːstˈklɑːs/
BEST relating to the best and most expensive available service, especially when travelling or sending something somewhere: a first-class ticket a first-class stamp Expensive and luxuriousCosting too much
VERY GOOD of very good quality: It was a first-class restaurant.Extremely good
first class adverb How much is it to send this letter first class?
(Definition of first-class from the Cambridge Learners Dictionary © Cambridge University Press)
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