(travel, informal) A class of accommodation, typically on trains, which is less comfortable than other classes, and might have wooden seating.

In the best of its category.

(Marxism, social sciences) An individual's awareness of their relative place within the class system of society.

(agriculture) A commodity, usually produced on farms and part of a larger category. Products within a market class have similar physical characteristics, are grown or raised under similar conditions, and are bought and sold under similar terms and conditions.

(mathematics) An equivalence class of an equivalence relation that is a congruence.

plural of class tourist

Someone practising class tourism.

(military, historical) The Soviet Union's first class of nuclear-powered attack submarines, in service from 1958 through 1990.

(informal, derogatory, humorous) Economy class.

(finance) A group of financial instruments that have similar financial characteristics and behave similarly in the marketplace.