sky

1 of 2

noun

ˈskī 

plural skies

1

: the upper atmosphere or expanse of space that constitutes an apparent great vault or arch over the earth

2

: heaven sense 2

3

a

: weather in the upper atmosphere

b

: climate

… temperate English skies …

—G. G. Coulton

sky

2 of 2

verb

skied or skyed; skying

transitive verb

1

chiefly British : to throw or toss up : flip

2

: to hang (something, such as a painting) above the line of vision

3

: to hit (a ball) high into the air

intransitive verb

: to jump high

sky for a rebound

Synonyms of sky

Noun

• blue
• welkin
• skyline
• horizon
• firmament
• heaven(s)

Examples of sky in a Sentence

Noun

There wasn't a cloud in the sky.

Dark clouds moved quickly across the sky.

Hailstones suddenly fell out of the sky.

The sun was high in the sky.

The forecast is for sunny skies tomorrow.

a patch of blue sky

Recent Examples on the Web

Noun

Dark Sky International now recognizes more than 200 dark sky places across 22 countries, certifying destinations that protect the night sky and reduce artificial light. —Hanna Wickes, Miami Herald, 12 May 2026

Dark Sky International now recognizes more than 200 dark sky places across 22 countries, certifying destinations that actively protect night skies and reduce artificial light pollution through local ordinances and lighting retrofits. —Hanna Wickes, Fort Worth Star-Telegram, 12 May 2026

Verb

Clear skies American multinational technology company Intel showcases their motherboards during the artificial intelligence exhibition AI EXPO 2026 in Taipei, Taiwan, on March 25, 2026. —Alex Harring, CNBC, 1 May 2026

Bright skies this morning give way to more clouds by the afternoon hours. —Matthew Villafane, CBS News, 12 Apr. 2026

Word History

Etymology

Noun

Middle English, cloud, sky, from Old Norse skȳ cloud; akin to Old English scēo cloud

First Known Use

Noun

13th century, in the meaning defined at sense 1

Verb

1802, in the meaning defined at transitive sense 1

Phrases Containing sky

• blue sky
• blue-sky law
• deep-sky
• mackerel sky
• pie in the sky
• sky blue
• sky-high
• sky marshal
• sky pilot
• sky wave
• take to the sky/skies
• the sky's the limit

Rhymes for sky

• ai
• aye
• bae
• bi
• buy
• by
• bye
• chai
• chi
• cry
• die
• dry

Kids Definition

sky

noun

ˈskī

plural skies

1

: the upper atmosphere : the vast arch or dome that seems to spread over the earth

2

: heaven sense 2

3

: weather entry 1, climate

the forecast is for sunny skies tomorrow