Synonyms of first class

Noun

1. first class, superiority, high quality

usage: the highest rank in a classification

2. first class, 1st class, first-class mail, 1st-class mail, mail

usage: mail that includes letters and postcards and packages sealed against inspection

3. first class, accommodation

usage: the most expensive accommodations on a ship or train or plane

Adjective

1. excellent, first-class, fantabulous, splendid, superior (vs. inferior)

usage: very good;of the highest quality; "made an excellent speech"; "the school has excellent teachers"; "a first-class mind"

Adverb

1. first class

usage: by first class conveyance; with first class accommodations; "we always travel first class"