| a. | 1. | Of the best class; of the highest rank; in the first division; of the best quality; first-rate;
| |||
| Adj. | 1. | first-class - of the highest quality; "made an excellent speech"; "the school has excellent teachers"; "a first-class mind" Synonyms: excellent, fantabulous |
| Adv. | 1. | first-class - by first-class conveyance; with first-class accommodations; "we always travel first class" |