the region of the atmosphere and outer space seen from the earth, the heavens or firmament, appearing as a great arch or vault

under the sky, out of a clear sky, the sky's the limit

Formal and Informal Expressions of skies

In different contexts, you can replace 'skies' with suitable alternatives. In a more formal setting, 'atmosphere, firmament' is apt. In informal speech or writing, 'air, blue yonder' is a commonplace synonym.

skies: Explore its Definition & Usage

skies Definition

1the region of the atmosphere and outer space seen from the earth
2the heavens or firmament, appearing as a great arch or vault

Using skies: Examples

Take a moment to familiarize yourself with how "skies" can be used in various situations through the following examples!

Example
The skies were clear and blue.
Example
The stars in the night sky are beautiful.
Example
The plane disappeared into the cloudy sky.
Example
The rocket was launched into the skies.

skies Synonyms and Antonyms

Synonyms for skies

Phrases with skies

under the sky
in existence; on earth
Example
There is nothing new under the sky.
out of a clear sky
unexpectedly and without warning
Example
The news of his resignation came out of a clear sky.
the sky's the limit
there is no upper limit to what can be achieved or attained
Example
With hard work and determination, the sky's the limit for your success.

Origins of skies

from Old Norse 'sky', meaning 'cloud'

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Summary: skies in Brief

The term 'skies' [skaɪz] refers to the region of the atmosphere and outer space seen from the earth, or the heavens or firmament. It is often used to describe the appearance of the sky, such as 'The skies were clear and blue.' 'Skies' also appears in phrases like 'under the sky,' meaning on earth, and 'the sky's the limit,' implying no upper limit to what can be achieved.