First class and Orderly

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

Orderly and first class are semantically related. In some cases you can use "Orderly" instead an adjective phrase "First class".

Orderly adjective - Being clean and in good order.

First class and orderly are semantically related. Sometimes you can use "First class" instead an adjective "Orderly".

Nearby Words: order, ordered, orderliness