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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

Seven & i Holdings 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

The i Paper headlines on Burnham's pledge for "growth, housing and No 10 North".

From BBC ● Jun. 30, 2026

Anonymous BBC staff tell the i Paper of their frustration with the corporation's latest cuts, as part of its plans to save £500m.

From BBC ● Jun. 18, 2026

For instance, multiplying by the number i was equivalent to spinning the sphere 90 degrees clockwise.

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

Her inevitable set closer “Man I Need” is the caliber of a track that will outlive her and all of us, a song that will always belong to the lovers yet to come.

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

"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

“People of the Philippines, I have returned,” General MacArthur says.

From "At Last She Stood" by Erin Entrada Kelly

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

Rapin speaks of him as one who was encouraged to hope by some distinguished mark of the queen's-299--vol i- favor, which he does not however particularize.

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

From the new sovereign substantial benefits as well as flattering distinctions awaited him, being reinstated-266--vol i- by her in the possession of his confiscated estates and appointed a privy-councillor.

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

By others, the system of Luther was in the whole or-308--vol i- in part adopted.

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

Eden's History of the Working Classes, vol. i. p.

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

He also urged them not to allow partnerships between large corporations and the military, the way the German scientific community and government did with I. G. Farben and Krupp Armaments and Steel.

From Los Angeles Times ● Jun. 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

Nearly five million Americans served in uniform during World War I. After the war, the U.S. drew down the Army to a minimal level and kept it there for two decades.

From The Wall Street Journal ● Apr. 28, 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

“You see my state,” said I. “I would come with you if I could; but indeed I am quite unable. If you take me from here, I think I shall die by the way.”

From "Great Expectations" by Charles Dickens

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

Thus final -o bespeaks a noun; -a, an adjective; -e, an adverb; -i, an infinitive, etc.

From International Language Past, Present and Future: With Specimens of Esperanto and Grammar by Clark, Walter John

I E -i formed abstracts and nouns of agency; I E ar go; Min ari, way, track, trail.

From The Dakotan Languages, and Their Relations to Other Languages by Williamson, A. W. (Andrew Woods)

Oncus -i: a welt: applied to welt-like ridges on caterpillars.

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

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

“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

Was it all the I’s that did it or the mental picture that streaked cometlike across the unfocused lens of her mind?

From "The Great Gilly Hopkins" by Katherine Paterson

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 there any way you can increase your income?

From MarketWatch ● Jul. 14, 2026

Is it time to talk about mandatory retirement ages?

From Slate ● Jul. 13, 2026

‘What guide? Why must I find the Mountain? Will I be safe there? Is that it? Safe from the bear?’

From "Wolf Brother" by Michelle Paver

“No matter what the federal government was doing, they knew that if they weren’t dotting their i’s and crossing their t’s, they were going to get called to account,” Hilton said.

From Salon ● Jul. 15, 2026

"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

I’ve won the writing prize twice, and I would have this week, too, but I decided to leave some i’s undotted.

From "In the Time of the Butterflies" by Julia Alvarez

One nonprofit in Dallas reported that demand for food assistance is now higher than it was in 2008 during the financial crisis or in 2020 during the pandemic.

From MarketWatch ● Jul. 15, 2026

The only other company to use such directors is Ben & Jerry’s, an experiment that ended in spectacular failure.

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

That corporation, OpenAI Group PBC, is still fully controlled by the nonprofit, whose mission directors fill the PBC’s board.

From The Wall Street Journal ● Jul. 15, 2026

At the time Joey contracts the disease, TB is a priority for public health leaders in the Philippines.

From "At Last She Stood" by Erin Entrada Kelly

Whenever we watch a silent film, it is helpful to remember that we are encountering an extraordinary survivor, for the vast majority of them are lost forever.

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

They added: "We are hopeful that we can secure helicopter support soon, but they are presently unavailable due to attending fires south of the border in England."

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

After a month of planting, we watch, wait for the crops to grow.

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

Tell me, Christopher Nolan, when did it first rosy-fingered dawn on you that your favorite type of protagonist — a tormented sinner-hero — was a specialty of the ancient Greeks?

From Los Angeles Times ● Jul. 15, 2026

"I was in disbelief when I first saw the post shared by him, I was in disbelief he painted me like this," said Beg.

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

Mr. Alexander is enough of a practical politician to avoid such an analogy, but allow me to illustrate.

From The Wall Street Journal ● Jul. 15, 2026

Father stands behind me, his breath ragged, heaving like he might explode.

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

He gave us dozens of hours of inventive comedy and deserves much more glory than he has yet received.

From The Wall Street Journal ● Jul. 15, 2026

Her inevitable set closer “Man I Need” is the caliber of a track that will outlive her and all of us, a song that will always belong to the lovers yet to come.

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

“Ladies, perhaps some decorum on this fine Tuesday morning?” our music theory teacher scolds us as she walks by.

From "Split the Sky" by Marie Arnold

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

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

A sour smell of privy smoke rose off his hair, and probably mine.

From "The Teacher’s Funeral" by Richard Peck

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

“I got on stage, did my first joke and was super nervous,” he said.

From Los Angeles Times ● Jul. 15, 2026

"He is the perpetrator... he infiltrated my life and my family and my finances. He should be the one that should feel the shame, not me."

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

Someone slid it into my locker at school today.

From "Split the Sky" by Marie Arnold

Revenue fell 6% to $198 million in the final mile services segment, which the company attributed to “known business losses given our ongoing efforts to improve revenue quality and profitability across various accounts.”

From The Wall Street Journal ● Jul. 15, 2026

"The other factor is the US economy is strong... they need our exports and you're seeing US businesses increasingly increase their orders for our Canadian exports."

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

“Auntie, you know we’re not little kids anymore. We don’t require our foods to be animal-shaped,” I remind her.

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

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

Jamal said he was now based in Leicester, and boasted: "We know everyone in this city, this city is ours."

From BBC ● Jul. 2, 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