blue sky
blue **
blue air
wild blue yonder

Even as he said this, two young girls and a whoosh of cool, blue air rushed out.

I look up, into the bright blue air.

White gulls shrieked as they whirled in the blue air.

And down they sank through the thin blue air.

The slug screamed off the iron deck, high into the blue air.

You throw the ball into the blue air.

Three large crows circled high in the blue air.

Now Nada looked down and discovered that what surrounded the castle wasn't water, but sky blue air.

The bird came back, climbing the blue air, and brought a passenger pigeon from below the clouds.

Perfectly shaped, pure white, many miles high, they stood immobile in the cold blue air.