First class and Skyward

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

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

Skyward adjective - Directed toward heaven or the sky.

First class and skyward are semantically related. Sometimes you can use "First class" instead an adjective "Skyward".

Nearby Word: skywards