sky

blow something sky-high

to make something that someone is trying to achieve fail completely, often by telling people something which should have been a secret. He blew the whole deal sky-high by telling the newspapers about it.

See also: blow

out of the blue (British, American & Australian, American & Australian)

if something happens out of the blue, it happens suddenly and you are not expecting it. Then one day, completely out of the blue, I had a letter from her. The invasion came out of a clear blue sky and caught everyone off guard.

See also: blue

pie in the sky

if an idea or plan is pie in the sky, it seems good but is not likely to be achieved. Those plans of his to set up his own business are just pie in the sky.

See also: pie

The sky's the limit.

something that you say which means there is no limit to what something or someone can achieve. With two important film roles and a major award, it seems like the sky's the limit for this talented young actress.

See also: limit

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out of a clear blue sky

out of the blue

See also: blue, clear

out of the blue

happening suddenly and unexpectedly. Then one day, completely out of the blue, I had a letter from her. The attack came out of a clear blue sky.

out of thin air

See also: blue

pie in the sky

something good that is unlikely to happen. Our leaders need to offer more than pie in the sky when they talk about political and social issues.

See also: pie

the sky's the limit

there is no limit. Smaller sailboats can be reasonably priced, but for bigger boats the sky's the limit.

See also: limit