first class

Từ điển Oxford Learners Wordfinder Dictionary

I - noun

1. the highest rank in a classification (Freq. 1)
• Hypernyms:
superiority, high quality
2. mail that includes letters and postcards and packages sealed against inspection
• Syn:
1st class, first-class mail, 1st-class mail
• Hypernyms:
mail
• Hyponyms:
correspondence
3. the most expensive accommodations on a ship or train or plane
• Hypernyms:
accommodation

II - adverb

by first class conveyance;
with first class accommodations
- we always travel first class