Blue-sky and Blue

Blue-sky adjective - Without immediate commercial value.

Blue and blue-sky are semantically related. In some cases you can use "Blue" instead a noun phrase "Blue-sky".

Blue noun - The expanse of air surrounding the earth.

Blue-sky and blue are semantically related. Sometimes you can replace phrase "Blue-sky" with "Blue", this terms are similar.

Nearby Words: blues, blued, bluish, blueing, bluet