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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
Synonyms

i

1 American  
Mathematics.
  1. Also called imaginary unit.  the imaginary number .

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


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.


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.


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.


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.


i- 6 American  
  1. variant of y-.


i. 7 American  

abbreviation

  1. imperator.

  2. incisor.

  3. interest.

  4. intransitive.

  5. island.

  6. isle; isles.


-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.


I. 9 American  

abbreviation

  1. Independent.

  2. Island; Islands.

  3. Isle; Isles.


I 1 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

abbreviation

  1. Italy (international car registration)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
-i 2 British  

suffix

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

    Iraqi

    Bangladeshi

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

-i- 3 British  
  1. used between elements in a compound word Compare -o-

    cuneiform

    coniferous

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

    1. something shaped like an I

    2. ( in combination )

      an I-beam

  3. to pay meticulous attention to detail

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

I. 5 British  

abbreviation

  1. International

  2. Island or Isle

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

I 6 British  
/ aɪ /

pronoun

  1. (subjective) refers to the speaker or writer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

i 7 British  

symbol

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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


i Idioms  

Grammar

See me.

Other Word Forms

Noun Inflected Forms

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The "driest July in 190 years" is the top story for The i Paper, with both England and Wales seeing the driest July since records began.

From BBC Aug. 4, 2026

The deal, if successful, would be the largest-ever acquisition for the owner of Circle K, which abandoned a $47 billion takeover attempt of Seven & i, the Japanese owner of 7-Eleven, last July.

From The Wall Street Journal Jul. 31, 2026

The move comes less than a week after Seven & i decided against proceeding with a potential investment in ⁠Zabka.

From The Wall Street Journal Jul. 31, 2026

"Race against time" says the i Paper, next to a photo of a French firefighter standing in front of a burning row of trees and tall grass.

From BBC Jul. 27, 2026

Olly: ok Olly: we're still friends, i don’t feel sorry for you Madeline: Thank you.

From "Everything, Everything" by Nicola Yoon

In 2020, I calculated that repealing the firewall would lead to $2.2 trillion in higher subsidy spending over a decade for the estimated 24 million people who would switch from employer coverage to the exchanges.

From The Wall Street Journal Aug. 11, 2026

I had just one thing in mind when I arrived, however: cooling herbs.

From Los Angeles Times Aug. 11, 2026

"I don't know the issue yet in detail, but in some ways, as I understand it, it is about creating secure space," he said.

From BBC Aug. 11, 2026

In January of each year, I update the amounts in cash and bonds based on our prior-year spending.

From The Wall Street Journal Aug. 11, 2026

“If I don’t run risks, I won’t find out anything worthwhile,” she 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

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 Chester E. Jorgenson

Concerning that point indeed, my Sturmius, I have nothing certain to write to you, nor does any one truly-101--vol i- know what to judge.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

Of the higher gentry, however, there were considerable numbers who-157--vol i- either went and established themselves in the protestant cities of Germany, or passed away the time in travelling.

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

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

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

See Lankester’s Treatise of Zoology, vol. i. fasc.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" by Various

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

Pearl diving has all but disappeared, particularly after the mass production of cultured pearls on farms after World War I. In Gulf countries, the extinction of this profession converges with a familiar story.

From The Wall Street Journal Aug. 6, 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

Guy Fieri didn’t know about it, and neither did I. Oh no, he did.

From Los Angeles Times Apr. 26, 2026

Morris’s mother and father, respectively, were an accomplished organist and a mechanic who had been gassed in World War I. Like Waugh, Morris boarded as a teenager at Lancing College in West Sussex, England.

From The Wall Street Journal Apr. 23, 2026

“Recounting to-night’s triumph?” said I. “Surely a very poor one, Estella.”

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

I, except that some of them have imperatives in -i: vaki, þęfi; uni. lifa, sęgja have imper. lif, sęg.

From Icelandic Primer with Grammar, Notes and Glossary by Henry Sweet

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

Verbs in -i add -ua to the final syllable.

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

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

In a statement read to the public inquiry examining how Letby was able to attack babies, Child I's mother said: "I believe the doctors and nursing staff should have acted earlier."

From BBC Sep. 19, 2024

She dots her I’s with little round circles, like Orphan Annie eyes, or bubbles.

From "Cat's Eye" by Margaret Atwood

Don’t miss: ‘I want to meet someone rich. Is that so wrong?’

From MarketWatch Aug. 11, 2026

"Is he simply going to ramp up the name of Liverpool in order to make as much money as possible?"

From BBC Aug. 11, 2026

Is your company becoming more always-on in nature?

From The Wall Street Journal Aug. 10, 2026

Is this idea of the Bryan Hearns woman still the same, or has that evolved over the years?

From Los Angeles Times Aug. 10, 2026

“Who were you talking to? Is someone here?”

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

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

The i's Anna Bonet added Intermezzo is "mature and profound and feels like a culmination of everything she has done before".

From BBC Sep. 23, 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

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

Optical stocks have recaptured investors’ interest lately, but Lumentum’s blowout earnings report is being met with a ho-hum response.

From MarketWatch Aug. 11, 2026

The drifting “Other Plans” is so minimal that much of Ms. Bridgers’s melody line consists of a single repeated note.

From The Wall Street Journal Aug. 11, 2026

Oracle’s share price is under pressure once more as artificial-intelligence spending concerns retake the spotlight.

From MarketWatch Aug. 11, 2026

Which is fine, but one likes a mix.

From The Wall Street Journal Aug. 11, 2026

He cites an article in Reader’s Digest from 1951, written by Thomas Johnson, in which a full account of Joey’s bravery is outlined.

From "At Last She Stood" by Erin Entrada Kelly

“Customer demand is accelerating as enterprise adoption broadens and we continue to deepen our technology platform.”

From MarketWatch Aug. 11, 2026

“He was telling us to get him out, and we provided support.”

From The Wall Street Journal Aug. 11, 2026

“But I’m speaking today anyway, so there’s a record. So years from now… everyone will know we fought, that we did not consent.”

From Los Angeles Times Aug. 11, 2026

Egerton said: "I do love him. I just don't think we work very well in terms of our relationship. So, there was a point where I pushed the ejector seat and haven't seen him since."

From BBC Aug. 11, 2026

I shout back, “It’s cool. Are you sure we can talk here, at your job? I don’t want to get you in trouble.”

From "Split the Sky" by Marie Arnold

You might drop this paper with an “ick” if you knew how many readers proved my point by shrieking “denier” at me.

From The Wall Street Journal Aug. 11, 2026

“That gives me solace. I will see you on the flip side, honey bunny.”

From Los Angeles Times Aug. 11, 2026

When he mentioned that Alcaraz had left behind a 16-year-old daughter, the weight of his death struck me like a blow to the chest.

From Slate Aug. 11, 2026

Delivering his verdict, Deputy Chief Magistrate Tan Ikram referred to footage in which Wilby said: "I don't care about your feelings, your feelings don't matter to me".

From BBC Aug. 11, 2026

Father trained me: “Take care of the animals first, so they can take care of you.”

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

Only experience will tell us how much temperatures actually change in the coming decades.

From The Wall Street Journal Aug. 11, 2026

Presidents rightly expect more security than the rest of us, but that typically comes with greater scrutiny of their locations and activities too.

From Slate Aug. 11, 2026

"He will be greatly missed by all of us," the statement from the firm added.

From BBC Aug. 11, 2026

“The Compassionate Allowances initiative cuts through red tape and allows us to deliver support to individuals who experience life-changing diagnoses and need help fast.”

From MarketWatch Aug. 11, 2026

Doesn’t seem fair that they have to pull, carry us.

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

This “disruption allowance” effectively removes 800,000 metric tons of copper from his global mine supply forecast.

From MarketWatch Aug. 11, 2026

To investigate, the team collected mine water from a flooded uranium mine in the Ore Mountains belonging to Wismut GmbH.

From Science Daily Aug. 9, 2026

"This son of mine has no father, no birth certificate and no national number," Amira, whose name has been changed to protect her identity, tells the BBC.

From BBC Aug. 7, 2026

The bank raises its share-price target to A$13.00 from A$12.00 to reflect increased expected mine life and output at some operations.

From The Wall Street Journal Aug. 7, 2026

And if his were gone, mine could not be far behind.

From "The Teacher’s Funeral" by Richard Peck

When 10th Street Entertainment’s merchandising director Ian Dietrich came across fanmade clothing with the Papa Roach lyric “Cut my life into pieces,” he didn’t try to take the shop down.

From The Wall Street Journal Aug. 11, 2026

Bonus: my car smelled sublime — minty and fresh — the entire way home.

From Los Angeles Times Aug. 11, 2026

Men in West Wing, the block visible from my window, were even given a fire drill.

From Slate Aug. 11, 2026

On the bouncing folk-rock number “Liberty Tree,” which again mentions Bobby, she sings, “I was alone with my thoughts / In an outline of chalk,” illustrating how isolation can feel like death.

From The Wall Street Journal Aug. 11, 2026

“You feel it,” I whisper, resting my head against her.

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

“CoreWeave reached an important inflection point this quarter as our scale began to translate into expanding operating leverage,” CEO Michael Intrator said in a press release.

From MarketWatch Aug. 11, 2026

During our exchange, she noted that my views on academic freedom were also found among “faculty with libertarian leanings.”

From The Wall Street Journal Aug. 11, 2026

Reyna: In the studio, I had a lot of moments where I felt totally alone, but what comforted me was our creative process.

From Los Angeles Times Aug. 11, 2026

"No words can truly express the pain we are experiencing or the void his passing has left in our lives."

From BBC Aug. 11, 2026

He’s remembering how hard our journey was—the weariness, the cold, the dangers on land and the treacherous waters.

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

Salzburg’s worries are our worries; its triumphs can be ours as well.

From Los Angeles Times Aug. 5, 2026

As much as we might wish otherwise, Kylie Jenner and Taylor Swift are not like us, and we cannot measure their autonomy and power on the same scale as ours.

From Slate Aug. 5, 2026

“Whirlpool has been a great partner of ours for decades and decades,” he said.

From The Wall Street Journal Aug. 4, 2026

Her world looks and operates like ours, and that means there are no free lunches.

From Salon Jul. 30, 2026

We were part of the United States branch, but there were Academy branches just like ours hidden all over the world.

From "Glitch" by Laura Martin

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