first class

English Thesaurus

1. the most expensive accommodations on a ship or train or plane (noun.artifact)

hypernym	:	accommodation,
definition	:	living quarters provided for public convenience (noun.artifact)

2. the highest rank in a classification (noun.attribute)

hypernym	:	high quality, superiority,
definition	:	the quality of being superior (noun.attribute)

3. mail that includes letters and postcards and packages sealed against inspection (noun.communication)

hypernym	:	mail,
definition	:	the bags of letters and packages that are transported by the postal service (noun.communication)

hyponym	:	correspondence,
definition	:	communication by the exchange of letters (noun.communication)