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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  

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

   cuneiform

   coniferous

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I. ⁴ British  

abbreviation

1. International

2. Island or Isle

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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  

symbol

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

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-i ⁷ British  

suffix

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

   Iraqi

   Bangladeshi

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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

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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

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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

The i Paper also leads with the spy chief's speech, quoting him as saying threats from foreign adversaries have quadrupled in a decade.

From BBC ● Oct. 14, 2026

“Dr. Williams has always maintained that he was acting i self-defense,” Libman wrote in an email.

From Los Angeles Times ● Oct. 9, 2026

Seven & i maintained its top- and bottom-line forecasts for the fiscal year ending February, expecting revenue to be flat at ¥10.430 trillion and net profit to fall 5.0% to ¥278.00 billion.

From The Wall Street Journal ● Oct. 8, 2026

The i says a "blunder over funding teacher pay rises" means school budgets are "set for squeeze".

From BBC ● Oct. 7, 2026

On November i, 1872, Susan B. Anthony opened a copy of the Rochester Democrat & Chronicle.

From "Votes for Women!" by Winifred Conkling

As a young professional, my trick ankle gave out and I collapsed in front of my boyfriend, Drew, in the parking lot of a TV studio in Hollywood.

From Los Angeles Times ● Oct. 23, 2026

A week later, I limped into Mandelbaum’s exam room.

From Los Angeles Times ● Oct. 23, 2026

I’d been a gymnast and cheerleader in my youth, and I still wanted to be able to do cartwheels.

From Los Angeles Times ● Oct. 23, 2026

The guy I was crushing on helped me to my feet and became my college sweetheart.

From Los Angeles Times ● Oct. 23, 2026

I see how the other men glance at him sideways and judge him as a man to be reckoned with.

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

A remarkable incident soon served to intimate the coolness and caution with which it was her intention-254--vol i- to proceed in re-establishing the maxims of the reformers.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

Cranmer-128--vol i- resisted for some time, but was at length won to compliance by the tears and entreaties of Edward.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

The king's marriage with Catherine Parr, his wife's sister, increased his consequence, and Henry-269--vol i- on his death-bed appointed him one of his executors and a member of the young king's council.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

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

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

From Textbooks ● Mar. 30, 2016

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

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 William Edward Hartpole Lecky

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 R. G. (Robert Gordon) Latham

He told me he is not seeing other people, and neither am I. Every year he goes to Mexico for six months.

From MarketWatch ● Sep. 19, 2026

Even a retreat that flops can draw employees closer while they commiserate over its lameness, adds Michael I. Norton, a Harvard Business School professor who has studied group rituals.

From The Wall Street Journal ● Jul. 23, 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

But for the 11 months we were married, I experienced the glory of being a we instead of an I. Suddenly I was part of a giant club, the Partnered People.

From Los Angeles Times ● May 22, 2026

We shake hands on it, Inkling and I. It is strange shaking hands with an invisible creature.

From "Invisible Inkling" by Emily Jenkins

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

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 A. W. (Andrew Woods) Williamson

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 Walter John Clark

Flocculus -i: a hairy or bristly appendage on the posterior coxa of some Hymenoptera.

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

World War I’s Eastern Front has never attracted the same attention as its western counterpart.

From The Wall Street Journal ● Sep. 29, 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

Queen Elizabeth I’s elaborate mask-like daily makeup ritual not only hid her smallpox scars but was also meant to project a preternatural agelessness.

From Los Angeles Times ● Mar. 24, 2024

Demi felt his back, as if expecting to find it like that of the watch, and then gravely remarked, “I dess Dod does it when I’s asleep.”

From "Little Women" by Louisa May Alcott

Is he living solely off his Social Security?

From MarketWatch ● Oct. 22, 2026

After everyone had discussed Ross's demise, she piped up in her famous Texan drawl: "Is Ross gone?"

From BBC ● Oct. 22, 2026

His therapy sessions raised questions like, “What does it mean to take your anger from childhood all the way into adulthood? Is that a kind of cancer?”

From The Wall Street Journal ● Oct. 22, 2026

She watches reality TV with her kids; joining them, he offers, “I did my thesis on reality. Is this show about Platonic or Aristotelian ideas?”

From Los Angeles Times ● Oct. 22, 2026

“Do you mind if I ask what happened? Is it something you were born with, or —” I continue and then stop myself.

From "The Brightwood Code" by Monica Hesse

Now, there are still some t’s to cross and i’s to dot.

From Slate ● Oct. 3, 2026

“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

The deputy chief told Boyd that Spivey’s body was towed “to make sure that every i’s dotted, t’s crossed to clear you.”

From The Wall Street Journal ● Dec. 21, 2025

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

Dopamine is another major chemical messenger that sends signals to the basal ganglia, a brain region involved in forming habits.

From Science Daily ● Oct. 23, 2026

Meanwhile, the scientists are expanding their approach to investigate spin defects in silicon, as well as materials used in energy technologies where internal conversion influences how energy is transferred or lost.

From Science Daily ● Oct. 23, 2026

The team is exploring ways to reduce those requirements, including the use of artificial intelligence.

From Science Daily ● Oct. 23, 2026

"Our next goal is to optimize the body design to enable faster swimming," Raman says.

From Science Daily ● Oct. 23, 2026

The Philippines is rich with magical legends and folktales, but it’s rich with resources too—sugar, timber, gold, tobacco, and hemp, which can be used for paper, rope, and textiles.

From "At Last She Stood" by Erin Entrada Kelly

"And we wanted to optimize all these parameters to support live muscle cells."

From Science Daily ● Oct. 23, 2026

With my husband onboard, we chose a venue: the Penthouse, a swanky restaurant atop Santa Monica’s Huntley Hotel.

From Los Angeles Times ● Oct. 23, 2026

"At the start of the season it was made clear in interviews we wanted to be an aggressive attacking team. We are not there yet, we're still working it out."

From BBC ● Oct. 23, 2026

“And more importantly, we saw 68% remission in our clinical trial. So, it’s really a quantum change, an inflection point in what we can offer to patients. From a clinical care perspective, that’s really meaningful.”

From Science Daily ● Oct. 23, 2026

And did we have our eyes open or closed?

From "Split the Sky" by Marie Arnold

“About fifty people came and talked to me, and bought copies ‘In the Country of Women,’ my memoir published by Catapult, and ‘Sacrament,’ my latest novel, published by Counterpoint.

From Los Angeles Times ● Oct. 23, 2026

"Sometimes it takes me longer to take a website down than to fix the PHP problem."

From BBC ● Oct. 23, 2026

I slid down that trail with my leg dragging behind me and injured my right knee.

From Los Angeles Times ● Oct. 23, 2026

“His understanding of the crisis has made it so vivid for me in a way that is unignorable,” she said.

From Los Angeles Times ● Oct. 23, 2026

“I doubt they’ll let me do it. John and the sheriff served together in the war.”

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

"The underwater location allows us to implement systematic, large-scale surveys," Seama explains.

From Science Daily ● Oct. 23, 2026

None of it really makes sense, but none of us really makes sense.

From Los Angeles Times ● Oct. 23, 2026

This is when our brain makes us think the Moon looks bigger because it is viewed alongside objects on the horizon such as buildings and trees.

From BBC ● Oct. 23, 2026

“Management’s focus on the bottom line leaves us less confident in a speedy turnaround story.”

From The Wall Street Journal ● Oct. 23, 2026

He’d made it a point to tell us that dating outside of his race didn’t mean he was rejecting Black women.

From "Split the Sky" by Marie Arnold

Dad told me more than once that the house would be mine someday.

From MarketWatch ● Oct. 23, 2026

State-owned Codelco was, for example, forced to suspend expansion of the El Teniente mine -- Chile's largest -- after studies flagged up seismic risks.

From Barron's ● Oct. 22, 2026

“My job is to mine all that, to go to the sub-basement.”

From Los Angeles Times ● Oct. 21, 2026

Measured and indicated resources of 1.2 billion tons have the potential to extend the mine life for decades, the company said.

From The Wall Street Journal ● Oct. 21, 2026

His eyes linger on mine for a longer-than-normal moment before he darts past Zara into the house.

From "Red Flags and Butterflies" by Sheryl Azzam

As a young professional, my trick ankle gave out and I collapsed in front of my boyfriend, Drew, in the parking lot of a TV studio in Hollywood.

From Los Angeles Times ● Oct. 23, 2026

In my late 20s, I’d wanted a full reconstruction, hard stop.

From Los Angeles Times ● Oct. 23, 2026

As a woman in her 50s living in youth-obsessed Los Angeles, I was well aware of my age.

From Los Angeles Times ● Oct. 23, 2026

As soft sunlight slanted in through my car window, I realized I’d already passed the performance baton onto my teenage daughter Dayna.

From Los Angeles Times ● Oct. 23, 2026

Clutching her mane, I throw my leg, myself, up and over her back.

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

“In comparison to that study, our FDA trial reported a 52% reduction in symptoms, so more than a four-fold increase in efficacy,” Won said.

From Science Daily ● Oct. 23, 2026

When we sat for dinner, speeches — or rather, roasts — broke out around the table, with our shared peals of laughter making the air ring with life and its sweetness.

From Los Angeles Times ● Oct. 23, 2026

"Our approach is to use the right infrastructure in the right place, drawing on a range of technologies including underground cables, wooden poles and our recently announced lower-profile monopoles."

From BBC ● Oct. 23, 2026

“This means we are on IBM M&A watch for the remainder of the year, as it’s the final bridge towards IBM reaching Street revenue forecasts in 2027, in our view,” they write.

From The Wall Street Journal ● Oct. 23, 2026

With Caesar, our adventure will be daring, startling!

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

The shame in this story was never his, and it was never ours.

From Salon ● Oct. 22, 2026

Recently, a client of ours complained through email about our services.

From The Wall Street Journal ● Oct. 17, 2026

"That future is ours to build. Let us build," he said.

From Barron's ● Oct. 16, 2026

“No nation, even one as capable and confident as ours, can safeguard them alone,” said Amin Nasser, chief executive of Saudi’s oil giant ARAMCO.

From Los Angeles Times ● Oct. 13, 2026

But her farm was right behind ours, so I couldn’t pretend I had to go in another direction.

From "The Seven Wonders of Sassafras Springs" by Betty G. Birney

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• he
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• they
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• xe
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• ze
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