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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  

/ aɪ /

pronoun

1. (subjective) refers to the speaker or writer

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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  

abbreviation

1. International

2. Island or Isle

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-i- ⁴ British  

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

   cuneiform

   coniferous

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i ⁵ 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 ⁶ British  

suffix

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

   Iraqi

   Bangladeshi

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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 in TechCrunch.

From Barron's ● Jul. 7, 2026

"Heatwave UK: 50-year record broken again" reports the i Paper, as the Met Office forecasts 37C on Friday.

From BBC ● Jun. 26, 2026

"Britain set to break 50-year heat record" is the i Paper's top story, "smashing UK's June record from 1976".

From BBC ● Jun. 24, 2026

She later clarified on Instagram, “I never said i was making a rock album.”

From Los Angeles Times ● Jun. 1, 2026

The only numbers that escape are the ones that are equally distant from the two rivals—the numbers on the equator, like 1, –1, and i.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

They are World War I letter openers, made from scrap wood or by blunting the edge of a military blade.

From The Wall Street Journal ● Jul. 15, 2026

“Ladies Room” was a zippy ode to the sanctity of a room of one’s own; “Time” promised that “It’s up to me to spend my time / I gave you yours, so give me mine.”

From Los Angeles Times ● Jul. 15, 2026

Mark Joseph Stern: There has been a lot of misunderstanding about exactly what the liberal justices did in B.P.J., and I want to clear that up.

From Slate ● Jul. 15, 2026

"I wanted to set something in that landscape as a way of reconnecting with her and to write about grief with humour and a lightness of touch."

From BBC ● Jul. 15, 2026

I pat Belle’s side, crooning, “It’s okay, Belle. It’s okay.”

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

Numbered footnotes in Sections I-VII of the Introduction have been relocated to the end of the Introduction and marked with an "i-".

From Benjamin Franklin Representative selections, with introduction, bibliograpy, and notes by Jorgenson, Chester E.

At a very early period, many of the nouns belonging properly to the i- and u-Declensions began to pass over to the a-Declension.

From Anglo-Saxon Grammar and Exercise Book with Inflections, Syntax, Selections for Reading, and Glossary by Smith, C. Alphonso (Charles Alphonso)

On another occasion, however, she exercised towards a family whose pretensions had been viewed by her-354--vol i- father with peculiar dread and hostility, a degree of forbearance which had in it somewhat of magnanimity.

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

Properties i. and ii. say that line integrals are linear, which is true of single-variable integrals as well.

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

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)

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

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

Yes, Jonny didn't play up to scratch but neither did I. I was trying too hard because I wanted to win.

From BBC ● Mar. 26, 2026

Commander Gorringe & the entire crew knelt down in prayer, and so did I. There was silence, except for the water slapping against the hull.

From "The (Mostly) True Story of Cleopatra's Needle" by Dan Gutman

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

In most words of this class the final -i of the stem is lost in the Nominative Singular; in others it appears as -e.

From New Latin Grammar by Bennett, Charles E. (Charles Edwin)

Every Esperanto verb has three Moods—the Conditional, the Imperative, and the Infinitive, which are formed respectively by means of the endings -us, -u, and -i.

From Esperanto Self-Taught with Phonetic Pronunciation by Mann, William W.

The remaining “weak” cases, formed by the suffixes -sma, -sya, -sy�, -y�, -i, -an, -t, -bhi, -su, -i, -a and -�, are really adjectives and adverbs.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various

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

They include everything from sketches of Apple logos to the bench and desk of the Apple I’s presentation at the Homebrew Computer Club a half-century ago.

From The Wall Street Journal ● Apr. 3, 2026

“Yeah, it takes us a little longer, but we dot our I’s and we cross our Ts,” she said.

From Los Angeles Times ● Nov. 22, 2024

“Law, my phone was disconnected cause I’s short this month. You talk to Yule May?”

From "The Help" by Kathryn Stockett

"Is he apologising because he can't get his facts right or is he apologising for the hurt he's caused me?" he said.

From BBC ● Jul. 15, 2026

“Is there support for that in the industry? Is that what people use? They have to be able to back that up.”

From The Wall Street Journal ● Jul. 14, 2026

Is it time to talk about mandatory retirement ages?

From Slate ● Jul. 13, 2026

Is there a smart way to manage an irregular income without feeling like every financial decision is a gamble?

From MarketWatch ● Jul. 13, 2026

“Think about what you just did. You comforted a soul in her darkest moment. You did that with no training, no guidance, nothing but the kindness of your own heart. Is that useless, Gingersnipes? Kindness?”

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

"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

Sometimes, he says, “dotting i’s and crossing t’s has to come second to right and wrong.”

From The Wall Street Journal ● Oct. 16, 2025

A Japanese company of Seven & i's size has never been bought by a firm from overseas.

From BBC ● Oct. 8, 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

At Swarthmore, Libbi got all A’s and B’s and started to spell her name with two i’s.

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

See more: What IBM’s profit warning means: Hardware is ‘eating everyone’s lunch’

From MarketWatch ● Jul. 15, 2026

The for-profit arm is now a Delaware public-benefit corporation, a for-profit company whose directors can balance profit, stakeholder interests, and a specified public mission—as they see fit.

From The Wall Street Journal ● Jul. 15, 2026

Energy Secretary Chris Wright said the U.S. had arranged to replace the 172 million barrels of SPR oil with about 200 million barrels within the next year, which is 20% more than the drawdown.

From MarketWatch ● Jul. 15, 2026

And the board is required to ignore profit entirely on safety and security matters, which are pervasive.

From The Wall Street Journal ● Jul. 15, 2026

She is elected president of the student council.

From "At Last She Stood" by Erin Entrada Kelly

If we’re going to play an important role in consumers’ lives today and moving forward, we have to be agile.

From The Wall Street Journal ● Jul. 15, 2026

There are steps we could take to make the court seem more like the public body it’s supposed to be.

From Slate ● Jul. 15, 2026

"This part of the Cairngorms National Park is popular with hillwalkers, and we ask that people remain vigilant while active firefighting continues."

From BBC ● Jul. 15, 2026

"If we do not see signs of disinflation soon, I am prepared to act," Federal Reserve governor Lisa Cook told an event in Washington.

From Barron's ● Jul. 15, 2026

The closer we get to the grand opening, the more intense the battle seems to get between the two groups.

From "Split the Sky" by Marie Arnold

“Ladies Room” was a zippy ode to the sanctity of a room of one’s own; “Time” promised that “It’s up to me to spend my time / I gave you yours, so give me mine.”

From Los Angeles Times ● Jul. 15, 2026

"He showed me pictures of his Army life," said the 57-year-old.

From BBC ● Jul. 15, 2026

“This recipe gives me the ability to deploy capital to these companies when they trade below intrinsic value,” along with confidence to invest more during periods of industry drawdowns, he said.

From MarketWatch ● Jul. 15, 2026

“They brought me so much joy,” Nguyen said.

From The Wall Street Journal ● Jul. 15, 2026

He’s thinking of me; I’m thinking of him.

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

“Many of us thought we’d now arrived at the era of making cars with robots, not human hands.”

From The Wall Street Journal ● Jul. 15, 2026

A new show at Roberts Projects lets us in on a different but equally foundational branch of Saar’s story: her costume design work.

From Los Angeles Times ● Jul. 15, 2026

"This could potentially overtake us here, this has gotten a little scary," a crew member says as the train rushes past burning trees near Armstrong, Ontario.

From BBC ● Jul. 15, 2026

“For us, that means treating every stock as an ownership stake in the business,” he said.

From MarketWatch ● Jul. 15, 2026

I don’t know what numbers will be called in next week’s lotto; I’ve no idea who’ll win the Super Bowl or when Rihanna’s gonna grace us with new music.

From "Split the Sky" by Marie Arnold

Its advanced chromatographic separation process is designed to recover critical minerals from several streams: mixed rare-earth carbonate, recycled magnets, mine tailings, industrial residues, zinc byproducts, electronic scrap and other secondary materials.

From The Wall Street Journal ● Jul. 14, 2026

Announcing its decision to close the Venetia mine, De Beers said it needed to cut costs and streamline operations given the depressed state of the world diamond market.

From BBC ● Jul. 14, 2026

Knowing as a father that could have been me, could have been friends of mine, I felt very connected to those people.

From Los Angeles Times ● Jul. 14, 2026

De Beers announced Monday it will pause production at South Africa's largest diamond mine for two years to reduce costs while trading conditions remained tough.

From Barron's ● Jul. 13, 2026

She nodded at the oval in my hand and then leaned down, putting her head close to mine to loud-whisper.

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

Detained since late January 2025, he described his time already spent behind bars as “extraordinarily difficult” and said, “I did not betray my country.”

From The Wall Street Journal ● Jul. 15, 2026

“Ladies Room” was a zippy ode to the sanctity of a room of one’s own; “Time” promised that “It’s up to me to spend my time / I gave you yours, so give me mine.”

From Los Angeles Times ● Jul. 15, 2026

"After my mum passed away, I found myself returning frequently to west Wales, where our family is from," he told BBC Wales.

From BBC ● Jul. 15, 2026

"I woke up this morning and I didn't have to carry my ID anymore," Maria Jesus Walda, a 34-year-old civil engineer, told AFP as she headed into Gibraltar.

From Barron's ● Jul. 15, 2026

I go back to my desk, pick up the flyer, and read it for a third time.

From "Split the Sky" by Marie Arnold

Odysseus is obsessed with honor, and Mr. Nolan has likewise done everything in his considerable power to pay worthy cinematic tribute to one of our foundational texts.

From The Wall Street Journal ● Jul. 15, 2026

"We must take their concerns seriously or our party will suffer the consequences."

From Barron's ● Jul. 15, 2026

He said Conagra had what was “probably our strongest innovation pipeline” in place to engage consumers.

From MarketWatch ● Jul. 15, 2026

Trip-related problems are exceedingly common, yet we keep packing our bags.

From Los Angeles Times ● Jul. 15, 2026

But like everything in Davey, our school is stuck in the past.

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

This same blockchain technology is being used to run Liberland's government and one day, if Sun gets his way, it could run ours too.

From BBC ● 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

One of them assigned to our platform had no blanket at all and Betsie insisted that we give her one of ours.

From "The Hiding Place" by Corrie ten Boom

Related Words

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