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• i
  i

  the imaginary number .
• I
  I

  noun

  the ninth letter of the English alphabet, a vowel.
• i-
  i-

  variant of y-.
• i.
  i.

  abbreviation

  imperator.
• -i-
  -i-

  the typical ending of the first element of compounds of Latin words, as -o- is of Greek words, but often used in English with a first element of any origin, if the second element is of Latin origin.
• I.
  I.

  abbreviation

  Independent.
• -i
  -i

  suffix

  of or relating to a region or people, esp of the Middle East

i

¹ American  

Mathematics.

1. Also called imaginary unit.  the imaginary number .

2. a unit vector on the x -axis of a coordinate system.

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I ² American  

[ahy] / aɪ /

Or i

noun

I's, plural Is, plural i's, plural is plural

1. the ninth letter of the English alphabet, a vowel.

2. any spoken sound represented by the letter I or i, as in big, nice, or ski.

3. something having the shape of an I.

4. a written or printed representation of the letter I or i.

5. a device, as a printer's type, for reproducing the letter I or i.

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I ³ American  

[ahy] / aɪ /

pronoun

we, plural nominative me, objective us, objective my, possessive mine, possessive our, possessive ours possessive

1. the nominative singular pronoun, used in referring to oneself, the person speaking, writing, or otherwise communicating.

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noun

I's plural

1. (used to denote the narrator of a literary work written in the first person singular.)

2. Metaphysics. the ego.

I ⁴ American  

abbreviation

1. interstate (used with a number to designate an interstate highway).

   I-95.

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I ⁵ American  

Symbol.

1. the ninth in order or in a series.

2. (sometimes lowercase) the Roman numeral for 1.

3. Chemistry. iodine.

4. Biochemistry. isoleucine.

5. Electricity. current.

6. Logic. particular affirmative.

7. (italics) isotopic spin.

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i- ⁶ American  

1. variant of y-.

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i. ⁷ American  

abbreviation

1. imperator.

2. incisor.

3. interest.

4. intransitive.

5. island.

6. isle; isles.

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-i- ⁸ American  

1. the typical ending of the first element of compounds of Latin words, as -o- is of Greek words, but often used in English with a first element of any origin, if the second element is of Latin origin.

   cuneiform; Frenchify.

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I. ⁹ American  

abbreviation

1. Independent.

2. Island; Islands.

3. Isle; Isles.

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I. ¹ British  

abbreviation

1. International

2. Island or Isle

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I ² British  

symbol

1. chem iodine

2. physics current

3. physics isospin

4. logic a particular affirmative categorial statement, such as some men are married, often symbolized as SiP Compare A E O 1

5. one See Roman numerals

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abbreviation

1. Italy (international car registration)

-i- ³ British  

1. used between elements in a compound word Compare -o-

   cuneiform

   coniferous

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i ⁴ British  

/ aɪ /

noun

1. the ninth letter and third vowel of the modern English alphabet

2. any of several speech sounds represented by this letter, in English as in bite or hit

3. 1. something shaped like an I

   2. ( in combination )

      an I-beam

4. to pay meticulous attention to detail

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-i ⁵ British  

suffix

1. of or relating to a region or people, esp of the Middle East

   Iraqi

   Bangladeshi

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I ⁶ British  

/ aɪ /

pronoun

1. (subjective) refers to the speaker or writer

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i ⁷ British  

symbol

1. Also called: j.  the imaginary number √–1

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i Scientific  

/ ī /

1. The number whose square is equal to −1. Numbers expressed in terms of i are called imaginary or complex numbers.

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i Idioms  

1. see dot the i's and cross the t's.

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Grammar

See me.

Other Word Forms

Noun Inflected Forms

• I's
  plural
• Is
  plural
• i's
  plural
• is
  plural
• mine
  possessive
• my
  possessive
• our
  possessive
• ours
  possessive

Etymology

Origin of I

First recorded before 900; Middle English ik, ich, i, Old English ic, ih; cognate with Gothic ik, German ich, Old Norse ek, Latin ego, Greek egṓ, Old Church Slavonic azŭ, Lithuanian aš, Sanskrit ahám

Example Sentences

See Examples For:

i I i- i. -i- I. -i I's Is i's is we me us mine my our ours

YouTube surpassed Netflix in average daily viewing time in 2025, according to research firm Digital i, cited by TechCrunch.

From Barron's ● Jul. 16, 2026

Seven & i Holdings 3382 -0.05%decrease; down pointing triangle raised its annual guidance after the war-driven surge in gasoline prices boosted earnings at its North American convenience-store business, sending quarterly net profit higher.

From The Wall Street Journal ● Jul. 9, 2026

YouTube surpassed Netflix in average daily viewing time in 2025, according to research firm Digital i cited in TechCrunch.

From Barron's ● Jul. 7, 2026

Andy Burnham's expected vow to "lift Britain back up" comes with what The i Paper calls the "biggest ever power transfer."

From BBC ● Jun. 28, 2026

If you consider the idea that a hundred million viruses could cover the dot on this i, then you get an idea of the sharpness of a diamond knife.

From "The Hot Zone" by Richard Preston

"The dimension is completely different. Even myself, I live for rugby, but football is still in my skin."

From BBC ● Jul. 17, 2026

"I wouldn't say they need to be worried. But they shouldn't be still," to maintain their edge, Abbass told AFP.

From Barron's ● Jul. 17, 2026

He said: "The other guests heard about my situation and made me feel welcome and we formed friendships. I feel wanted - it's given me meaning in life."

From BBC ● Jul. 17, 2026

"I surely won't make it to retirement in the mine, so I might as well move into a sector with a future," he says.

From Barron's ● Jul. 17, 2026

I ask, but nobody pays me any mind.

From "Will’s Race for Home" by Jewell Parker Rhodes

Yet that doesn't make its turnaround solely the work of one heavily stubbled mastermind, who saved a company through his singular vision, taste and liberal use of the i- prefix.

From The Guardian ● Jan. 25, 2011

But it wasn't until Cipla came out with the i- pill in 2007, marketing it to modern young women through television and magazine advertising, that women took to it.

From Time ● May 26, 2010

And that there never came-99--vol i- gold or stone upon her head, till her sister forced her to lay off her former soberness, and bear her company in her glittering gayness.

From Memoirs of the Court of Queen Elizabeth by Aikin, Lucy

The-207--vol i- success of this collection was prodigious; edition after edition was given to the public under the inspection of different poetical revisers, by each of whom copious additions were made to the original work.

From Memoirs of the Court of Queen Elizabeth by Aikin, Lucy

How tame, how puerile, in the midst of sentiments serious and profound as these, would have appeared-252--vol i- the intrusion of classical imagery, however graceful in itself or ingenious in its application!

From Memoirs of the Court of Queen Elizabeth by Aikin, Lucy

And a lot of people, not just the Gilbreths, were very worried that the “best women” i. e. highly educated women were not reproducing.

From Scientific American ● Sep. 21, 2023

For each of the following functions, determine the i. domain and ii. range.

From Textbooks ● Mar. 30, 2016

Combining the results from parts i. and ii., draw a rough sketch of f .

From Textbooks ● Mar. 30, 2016

Within minutes, I got my answer: “@sethporges yes. my girlfriend cathy and i. and i used to do puppet shows.”

From Forbes ● Jun. 26, 2012

The whole subject of the vision of St. Gregory is discussed by Champagny, Les Antonins, tome i. pp. 372-373.

From History of European Morals From Augustus to Charlemagne (Vol. 2 of 2) by Lecky, William Edward Hartpole

The concord of the 4th prefix, Mi-, is gi-, -i-, -ji-, and sometimes -mi-.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" by Various

It may be a connecting sound, like the -i- in nacht-i-gale.

From A Handbook of the English Language by Latham, R. G. (Robert Gordon)

So did I. The World Cup is over in less than two weeks, and France and Spain are currently the 1-2 favorites to win the thing.

From Los Angeles Times ● Jul. 8, 2026

Born in Oregon to Taiwanese immigrants, Wang is herself a beneficiary of the doctrine she defended during the historic oral argument—as am I. Following the argument, interest in her background exploded.

From Slate ● May 26, 2026

In a recent study, Purusharth I. Rajyaguru and colleagues used Saccharomyces cerevisiae, a type of yeast commonly used in research, to explore how life might respond to Mars-like stress.

From Science Daily ● Apr. 12, 2026

In World War II, the British Army suffered half the losses they had in World War I. Yet civilian casualties were higher.

From The Wall Street Journal ● Mar. 27, 2026

We used to listen to the radio every evening, Mutti and I. All through the war we had done this, listening for news from the particular battlefront where we thought Papi was fighting.

From "An Elephant in the Garden" by Michael Morpurgo

Then, when you get to the step where you’re actually running the check-backup command, add -i ~/Downloads/pegasus.stix2 into the option section.

From The Verge ● Jul. 21, 2021

Singular masculine words end in -us, plurals end in -i.

From The Guardian ● Jun. 11, 2010

Pulvillus -i: soft, pad-like structures between tarsal claws: the cushions of short, stiff hair or other clothing on the underside of tarsal joints; rarely fleshy lobes: see arolium.

From Explanation of Terms Used in Entomology by Smith, John. B.

The suffix -i, added to a noun stem, forms generally a neuter verb.

From The Mafulu Mountain People of British New Guinea by Williamson, Robert Wood

The suffix of manner defining the verb, is formed by adding the adjective with the final syllable changed to -i.

From The Mafulu Mountain People of British New Guinea by Williamson, Robert Wood

The medieval Cloth Hall and St. Martin’s Church were two of the most prominent monuments in Ypres, Belgium, and among World War I’s early casualties.

From The Wall Street Journal ● Jul. 15, 2026

Caleb said he was told the Llantrisant Mace was older than most of the Crown Jewels and survived Oliver Cromwell trying to melt down any remaining precious metal bearing Charles I's crest.

From BBC ● Jun. 18, 2026

The company taking the top spot on Gauntlet I’s leaderboard External link was Skycutter, a British startup that partnered with Ukrainian drone company SkyFall.

From Barron's ● Apr. 28, 2026

“I don’t carry beef with people. And I’m not going to get into the history of Doc and I’s relationship right now. And I probably won’t ever. He’s fine in my book.”

From Los Angeles Times ● Oct. 10, 2024

I's the one what set him to dusting.

From "How It Went Down" by Kekla Magoon

She has now written her autobiography, entitled "Is That You, Petula?"

From Barron's ● Jul. 17, 2026

Kalshi also opened markets on “Dancing With the Stars,” “Love Is Blind” and “The Traitors.”

From Los Angeles Times ● Jul. 15, 2026

Is France against Spain on Tuesday in the semis the real final, as many are suggesting?

From BBC ● Jul. 14, 2026

Is the latest ICE shooting becoming an issue there?

From Slate ● Jul. 14, 2026

“Am I still there? Is this a dream? Am I dead?”

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

"I had really dotted all the i's and crossed all the t's of the experiment," he said.

From Science Daily ● May 18, 2026

And I don’t tend to favor biographies, because there generally are some tedious sections in the middle as the writer dots the i’s and crosses the t’s of the subject’s life.

From The Wall Street Journal ● Apr. 17, 2026

"Your proposal does not adequately acknowledge the multiple and significant challenges such a transaction would face from US competition law enforcement agencies," Seven & i's letter added.

From BBC ● Sep. 5, 2024

They want to make sure they're dotting all the i's and crossing all the t's, to make sure these are the correct identifications.

From Salon ● Oct. 17, 2023

CPAs, those folks who can add columns of 9s in their heads, have been advising MDs since the 1980s to dot their i’s, cross their t’s, and never accept IOUs.

From "Woe Is I" by Patricia T. O'Conner

"Amateur rugby here in Argentina is booming," Contepomi told BBC Sport.

From BBC ● Jul. 17, 2026

It is not the first time England have been accused of becoming too defensive in key games.

From BBC ● Jul. 17, 2026

One recent success story is Leicester Tigers back-row Joaquin Moro, who joined from Pampas XV and started last season's Prem semi-final in his debut campaign.

From BBC ● Jul. 17, 2026

"This shirt is not only a lasting reminder of one of the most important moments in football history, but is principally connected to the very moment that catapulted Pele into a global sporting icon."

From BBC ● Jul. 16, 2026

It’s difficult to care for someone else when you don’t feel well, and Joey’s fever is relentless.

From "At Last She Stood" by Erin Entrada Kelly

Following the game, Kane said the team's improved second-half performance came after Tuchel had told them "if we lose, we lose in our way" in his half-time team talk.

From BBC ● Jul. 17, 2026

"Some songs just have it. If we knew what it was, we'd all be singing them!" she said.

From Barron's ● Jul. 17, 2026

“While we continue to expect modest USD appreciation by year-end, near-term upside is likely to remain capped without a fresh catalyst,” the strategists add.

From The Wall Street Journal ● Jul. 17, 2026

Another mother, who we are calling Sarah to protect her identity, said she felt "so angry" at the discovery because Campbell had had unsupervised contact with her children.

From BBC ● Jul. 17, 2026

But when they push off the coast with the Japanese Navy, they can’t help but wonder: Where are we going?

From "At Last She Stood" by Erin Entrada Kelly

He said: "The other guests heard about my situation and made me feel welcome and we formed friendships. I feel wanted - it's given me meaning in life."

From BBC ● Jul. 17, 2026

"No one can give me back my original appearance, because a lot of fat and skin have been removed," she said.

From Barron's ● Jul. 17, 2026

“As difficult as it is to leave, it feels like the right time for me to begin a new chapter,” Brown said in a memo to staff.

From The Wall Street Journal ● Jul. 17, 2026

Kreitzman gave me a Masai beaded collar, bought ethically from a female Kenyan designer, to work with.

From BBC ● Jul. 17, 2026

Her body heat warms me, calms my shivering.

From "Will’s Race for Home" by Jewell Parker Rhodes

“What stood out to us is there’s a disconnect between expectations and reality,” said Deb Boyden, head of U.S. defined contributions at Schroders.

From MarketWatch ● Jul. 17, 2026

A bigger issue may be what the tests can’t yet tell us.

From The Wall Street Journal ● Jul. 17, 2026

The council said it was "sorry some families learned about this matter online rather than hearing from us directly", but there had been legal limitations on what could be shared before he was sentenced.

From BBC ● Jul. 17, 2026

"I had imagined us being together until we're old, her scolding me until we're old, but now I can't hear her voice any more."

From BBC ● Jul. 16, 2026

Sadly, some of Joey’s days are lost to us.

From "At Last She Stood" by Erin Entrada Kelly

Even at the lowest point of a wind turbine, Witek expresses his awe at "the feeling of freedom" compared to the fourteen years he spent at the bottom of a mine.

From Barron's ● Jul. 17, 2026

In the mine where he works, the tunnels run as deep as 1,300 metres below the surface.

From Barron's ● Jul. 17, 2026

The Venetia mine, in the far north of South Africa, accounts for more than 40% of the country's diamond production and employs more than 4,000 people.

From BBC ● Jul. 14, 2026

That extends Black Butte’s mine life by four years, which is in line with Jefferies’s expectation.

From The Wall Street Journal ● Jul. 14, 2026

She half fell into the chair next to mine.

From "The Hiding Place" by Corrie ten Boom

"He was in a cubicle, he could have been looking at any child, not just mine. I can't get it out my head."

From BBC ● Jul. 17, 2026

"It's going to be something very important for me, and very emotional too. It may be my last one; who knows?," she said.

From Barron's ● Jul. 17, 2026

“Our strategy is working. We are attracting a broad range of luxury customers across product categories, channels and geographies, reinforcing my confidence in the opportunities ahead,” Chief Executive Joshua Schulman said.

From The Wall Street Journal ● Jul. 17, 2026

"We shared memories that will last for a lifetime and I lived a childhood dream to represent my country at a World Cup. We will be back, mark my words."

From BBC ● Jul. 17, 2026

“I love you, Belle. You are my best friend.”

From "Will’s Race for Home" by Jewell Parker Rhodes

"Hopefully, if we give them a reason to shout and sing, Argentinians are Latin people - we make noise and we love supporting our teams. Hopefully it'll be a noisy crowd."

From BBC ● Jul. 17, 2026

A US State Department spokesperson said the two countries "continue to identify areas of cooperation that benefit our nations related to trade and some security priorities".

From Barron's ● Jul. 17, 2026

While our bodies likely eliminate some, others accumulate in our bodies.

From The Wall Street Journal ● Jul. 17, 2026

"Thomas and the coaches will raise everyone for that and then lead us into qualification for our home Euros in 2028," said Bullingham.

From BBC ● Jul. 17, 2026

And did we have our eyes open or closed?

From "Split the Sky" by Marie Arnold

Ideally, I need to get to $250,000 to buy a modest apartment so my kid can have a place that is ours and has no debt associated with it.

From MarketWatch ● Jul. 14, 2026

"Each time that the other party has failed to meet its obligations, we did not uphold ours," he added.

From Barron's ● Jul. 13, 2026

Last week, at an event in Washington, House Speaker Mike Johnson reminded the audience of one of John Quincy Adams’ favorite lines: “Duty is ours; results are God’s.”

From Salon ● Jul. 10, 2026

The Washington monument is both architecture and sculpture, a powerful symbol with layered meanings for different generations from Washington’s time to ours.

From The Wall Street Journal ● Jul. 3, 2026

“Did you or did you not write the school a lot like ours, Ty?”

From "The Manifestor Prophecy" by Angie Thomas

Related Words

• he
• it
• she
• sie
• they
• ve
• xe
• you
• ze
• zie