Is sky a common everyday word?

Yes. It is one of the most common words for the space above us.

What is the difference between sky and heaven?

Sky is the physical space above Earth. Heaven is usually religious or poetic.

Can sky be used in business English?

Yes, often in phrases like "the sky is the limit."

How do I use sky in a sentence?

Say: "The sky was full of clouds."

← Dictionary

sky

/skaɪ/

IELTSAcademic

noun

The space above the earth that we see as blue during the day or dark at night. It can also mean the weather or the top part of a place.

The sky was clear and bright.
Look at the stars in the sky.
The sky turned grey before the rain.

Adinary Nuance

Sky is the everyday word for the space above us. Use heaven for a religious or poetic idea, and atmosphere for the scientific layer of gases around Earth. Sky is the natural choice in weather talk, travel writing, and simple description.

In other languages

Vietnamese: bầu trời
Spanish: cielo
Chinese: 天空
Japanese: 空
Korean: 하늘

Etymology

Sky comes from Old Norse ský, meaning "cloud." In English, the word later came to mean the space above us.

Common phrases

clear skyblue skynight skythe sky is the limit

Synonyms

heaven firmament

Related words

cloud atmosphere horizon weather

Frequently asked questions

Is sky a common everyday word?: Yes. It is one of the most common words for the space above us.
What is the difference between sky and heaven?: Sky is the physical space above Earth. Heaven is usually religious or poetic.
Can sky be used in business English?: Yes, often in phrases like "the sky is the limit."
How do I use sky in a sentence?: Say: "The sky was full of clouds."