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blue sky

blue sky

65 1.0
Sky that looks clear and blue during the day
  • noun
  • /blu skaɪ/
translation icon : cielo azul
  • The children played outside under the bright blue sky.
  • clear blue sky
  • bright blue sky
  • blue sky with clouds

Life is good and it's still blue skies and sunny.

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Examples

  • And there were blue skies, and there was fresh air!

  • I stared out the window at the silver Capitol dome against the blue sky background.

    Fiction book (1992)
  • I can see blue sky clearly now.

  • All I see is baby blue sky and baby blue water.

  • Had the clear blue sky and the deep blue sea.

  • Sun shining, a blue sky, a perfect day.

  • Life is good and it's still blue skies and sunny.

  • We've got snow down here and then just the most lovely blue sky up there.

  • The plane breaks out above the clouds into dazzling blue sky and bright sun.

    Fiction book (1990)
  • It was not a single cloud in the sky, pure blue skies, sunny.

Synonyms

sky
vsblue sky
1.0

The space above the earth that looks blue in daytime

is about the daytime color appearance rather than the whole atmosphere
blue
vsblue sky
22 1.0

The sky you see during the day

focuses on the daytime color when the air is clear
wild blue yonder
vsblue sky
  • Literature
2 7.1

The open blue sky far above the ground

is focused on literal daytime color and clear weather rather than imagery

How Blue

blue sky
65 1.0
azure
12 4.9
sky-blue
1 2.1
pale blue
14 1.0

Surface Forms

blue sky singular
blue skies plural

Morphology

blue + sky

The meaning 'the sky as it appears blue' is directly and compositionally derived from 'blue' (a color) + 'sky' (the visible atmosphere), so a learner who knows both words can infer the MWE meaning. This is a basic, literal combination common across languages and follows normal adjective + noun patterns, making it immediately transparent to B1 learners.

Etymology

Blue sky is the name for the sky when it looks blue on clear days. Sunlight has many colours and tiny bits of air send the blue colour to our eyes. That's why we call a bright daytime sky a blue sky.