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• is
  is

  verb

  3rd person singular present indicative of be.
• IS
  IS

  abbreviation

  information security.
• is-
  is-

  variant of iso- before a vowel.
• is.
  is.

  abbreviation

  island.
• Is.
  Is.

  abbreviation

  Isaiah.

is

¹ American  

[iz] / ɪz /

verb

1. 3rd person singular present indicative of be.

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idioms

1. as is. as.

IS ² American  

abbreviation

1. information security.

2. Islamic State. See ISIS.

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is- ³ American  

1. variant of iso- before a vowel.

   isallobar.

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is. ⁴ American  

abbreviation

1. island.

2. isle.

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Is. ⁵ American  

abbreviation

1. Isaiah.

2. island.

3. isle.

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Is. ¹ British  

abbreviation

1. Also: Isa.  Bible Isaiah

2. Island(s) or Isle(s)

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IS ² British  

abbreviation

1. Iceland (international car registration)

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is ³ British  

/ ɪz /

verb

1. a form of the present tense (indicative mood) of be 1

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is ⁴ British  

abbreviation

1. Iceland

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is- ⁵ British  

combining form

1. variant of iso-

   isentropic

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Etymology

Origin of is

First recorded before 900; Middle English, Old English; cognate with Dutch is, Old Norse es, er, German, Gothic ist, Latin est, Greek estí, Old Church Slavonic jestĭ, Sanskrit asti

Example Sentences

Appeared in the May 14, 2026, print edition as 'Taiwan Is the Key to AI Dominance'.

From The Wall Street Journal • May 13, 2026

“The King Is Dying” is all the plot summary that’s required.

From Los Angeles Times • May 13, 2026

VAR: Is it impactful on the goalkeeper that, for me.

From BBC • May 12, 2026

Is it the tone of these threats, the nature of the threats?

From Slate • May 12, 2026

Is it a tremendously brilliant show of ignorance?

From "The Brightwood Code" by Monica Hesse