Cardinal and First class

Cardinal adjective - Coming before all others in importance.

First class and cardinal are semantically related In some cases you can replace phrase "First class" with "Cardinal", this terms are similar.

Nearby Words: cardinally, cardinality

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

Cardinal and first class are semantically related in prime topic. Sometimes you can use "Cardinal" instead an adjective phrase "First class", if it concerns topics such as best.