SINCE 1828

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the horizon

Definition of the horizon

:the line where the earth or sea seems to meet the sky

The sun rose slowly over/above the eastern horizon.

Word by Word Definitions

horizon play

: the line where the earth seems to meet the sky : the apparent junction of earth and sky
: the great circle on the celestial sphere formed by the intersection of the celestial sphere with a plane tangent to the earth's surface at an observer's position — see azimuth illustration
: range of perception or experience

See the full definition of horizon

Seen and Heard

What made you want to look up the horizon? Please tell us where you read or heard it (including the quote, if possible).

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WORD OF THE DAY

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play

to conform or adhere

Words at Play

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The Origins of 'Lobbyist'

From the front hallways to the back rooms

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The History of the Word 'Terrorism'

Noah Webster first entered the term in 1840

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'Regimen' vs. 'Regiment'

The rule of thumb for words about rules

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'Spox' May Go On The Record

From newsroom lingo to the mainstream

Ask the Editors

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Words of the Year: 1066

Or, Why Pig Meat is Called 'Pork' and Cow Meat is Called 'Beef'

How Often Is 'Biweekly'?

Don't get us started on 'bimonthly'

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Irregardless

It is in fact a real word (but that doesn't mean you should use it).

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Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

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The Exceptions Quiz III

Which of these things doesn't belong?

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Forms of Government Quiz

Name that government! Or something like that.

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Name That Thing

Name That Thing

Test your visual vocabulary with our 10-question challenge!

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SCRABBLE® Sprint

SCRABBLE® Sprint

SCRABBLE® fans, sharpen your skills!

Play the game