Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “first class”

first class

adverb    
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.
(Definition of first class adverb from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of first class

More Business English definitions for “first class”

Definitions of “first class” in other dictionaries

Word of the Day

neighbourly

friendly or helpful

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More