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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  

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 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

"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- 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 /

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 5 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 6 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 7 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 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 i Weekend says the "biggest societal change in decades" has been blocked, amid "celebration and tears from MPs".

From BBC Sep. 12, 2026

The British royal family is vulnerable to cyber attacks from hostile states, according to the i Paper.

From BBC Sep. 3, 2026

The deal would mark Couche-Tard’s largest-ever acquisition after it abandoned a $47 billion takeover attempt of Seven & i, the Japanese owner of 7-Eleven, last year.

From The Wall Street Journal Sep. 1, 2026

David Zwirner presents Roy DeCarava’s “the sound i saw,” bringing together photographs taken in the late 1940s and 1960s.

From Los Angeles Times Sep. 1, 2026

And Darryl reminds me of the word "dairy," and "dairy" and "diary" are the same except for where i is.

From "Sunny" by Jason Reynolds

And I was like, ‘Wow, that’s a really big deal!’

From Los Angeles Times Sep. 18, 2026

“I support Michigan because I want the team to win—not because I expect anything in return.”

From The Wall Street Journal Sep. 18, 2026

“What I watch for is lean mass loss, which matters more in someone with inflammatory arthritis than in the general population, because muscle is what protects the joint,” she says.

From The Wall Street Journal Sep. 18, 2026

She added: "I had part of high school online because of Covid so I already knew how to use recorded content for learning so it felt very natural for me."

From BBC Sep. 17, 2026

Beyond the fire’s glow, I never knew darkness could be so black.

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

I was appointed to succeed him in his office; and the work which he had so happily begun, without my assistance indeed, but not without some counsels of-94--vol i- mine, I diligently labored to complete.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

From this period the cause of popery proceeded-183--vol i- triumphantly: a reign of terror commenced; and the government gained fresh strength and courage by every exertion of the tyrannic power which it had assumed.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

Cecil replied, "Yes, madam,-282--vol i- and she says your majesty would like to do so too;" lord Robert Dudley then filling the office of master of the horse to the queen.

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

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

Vol. ii. pt. i., by L. Nix and W. Schmidt, contains the Mechanics in Arabic, Greek fragments of the same, the Catoptrica in Latin with appendices of extracts from Olympiodorus, Vitruvius, Pliny, &c.

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

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

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

I’ve been a huge Robyn fan for most of my life — she’s kind of a north star for my sisters and I. It’s no secret that we love sad dance songs.

From Los Angeles Times Jun. 18, 2026

Also in 2025, she was a finalist for the Alfred I. duPont-Columbia University Awards for her reporting and hosting of an audio investigation into a deadly U.S. refinery explosion.

From The Wall Street Journal May 29, 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

Neither do I. I’m not afraid of him.

From "The Last Cuentista" by Donna Barba Higuera

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

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

If not a few Bantu languages, the verb used in a negative sense changes its terminal -a to -i.

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

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

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

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

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

Child I's mother suggested senior managers should face sanctions if they ignore whistleblowers' concerns.

From BBC Sep. 19, 2024

I’s so nervous I feel like I’m on throw up right here on Mister Raleigh’s church suit. “... and we’ll end the show with the book review.”

From "The Help" by Kathryn Stockett

Appeared in the September 17, 2026, print edition as 'Kevin Warsh Is an Inflation Hawk'.

From The Wall Street Journal Sep. 16, 2026

Is this sort of thing worth the hassle?

From MarketWatch Sep. 16, 2026

Is it control of self-replicating armies of autonomous drones, or a cancer-free utopia that hits Type II on the Kardashev scale?

From Salon Sep. 16, 2026

Is a September heatwave forecast for the UK?

From BBC Sep. 15, 2026

“That’s a good sign. Is there any reason?”

From "Bye Forever, I Guess" by Jodi Meadows

"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

So homeowners, dot the i’s and cross the t’s when you sell—and be ready to show your work.

From The Wall Street Journal Mar. 6, 2026

“I know sometimes people feel like, why hasn’t there been more information? But again, just trying to make sure we have i’s dotted and t’s crossed.”

From Los Angeles Times Feb. 26, 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

The southern half of the UK is likely to be more cloudy and have a muggy feel with the chance of light rain and drizzle.

From BBC Sep. 18, 2026

“It was quite an image that is very vivid to me right now.”

From Los Angeles Times Sep. 18, 2026

“We didn’t want money. We just wanted Uber to do what it says it’s going to do, which is bring her back home safely.”

From Los Angeles Times Sep. 17, 2026

"Over the last couple of months my whole TikTok and Instagram is just people learning to drive. It's like my algorithm knows, it's quite scary," she said.

From BBC Sep. 17, 2026

The cure for leprosy is now readily available.

From "At Last She Stood" by Erin Entrada Kelly

“And we found a number of serious issues and we fixed them.”

From The Wall Street Journal Sep. 18, 2026

"When we have a success we're very good at getting a leaflet sent out to supporters straight away," one senior MP said.

From BBC Sep. 18, 2026

“His art became part of American culture, but the man behind that art — the father we knew and loved — is the person we will miss most.”

From Los Angeles Times Sep. 17, 2026

"Eighteen months in and we actually have a completely functional, super high-performance simulator," says Lu.

From BBC Sep. 17, 2026

In my head, Jacqueline and I were the same: We loved music so much, we made it our breath.

From "Split the Sky" by Marie Arnold

“It was quite an image that is very vivid to me right now.”

From Los Angeles Times Sep. 18, 2026

"Part of me wants to talk about it and then part of me doesn't, because I feel like my words get twisted or people are like 'oh, she's making excuses'," Hodgkinson said.

From BBC Sep. 17, 2026

“It gives me goosebumps that people can still find something in common and work together,” McCarthy said.

From The Wall Street Journal Sep. 17, 2026

“The U.S. is absolutely vulnerable to a Pearl Harbor in space,” this person told me.

From Slate Sep. 17, 2026

“I won’t tell,” I promise, hoping Father will smile at me.

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

"There's an expectation that they keep us safe, and this flies in the face of that."

From BBC Sep. 17, 2026

When WSJ asked her how she’d spend 24 hours in the city, she gave us a thorough rundown, from where to eat breakfast to where she’d shop for a stylish outfit.

From The Wall Street Journal Sep. 17, 2026

“The school won’t allow us to practice until Wednesday and we’ll still be day-to-day after that.”

From Los Angeles Times Sep. 17, 2026

"So no, I don't think we are psychologically prepared… but I do think that we are beginning to recognise that war is something that is closer to us than we'd like to think".

From BBC Sep. 17, 2026

“Well, I still don’t want to know the details, but… I need to know if you saw anything about me and Candace. Did you get a Flash about us at all? Good or bad?”

From "Split the Sky" by Marie Arnold

It has a buy rating and A$1.50 target on Larvotto, which owns a gold and antimony mine in Australia.

From The Wall Street Journal Sep. 16, 2026

“Tova’s crabbiness certainly fits with mine right now. And her age,” she said.

From Los Angeles Times Sep. 15, 2026

"Macklemore coming off tour was the promoter's decision, it was not mine," Sheeran wrote in a lengthy Instagram post, adding that the rapper's contract was ended by the promoter, Messina Touring Group.

From Barron's Sep. 15, 2026

The Revolutionary Guards said the vessel, Sidr, caught fire after hitting a naval mine.

From BBC Sep. 15, 2026

And there in the center of the room was my bench, and next to mine Hans the apprentice’s, and against the wall old Christoffels’.

From "The Hiding Place" by Corrie ten Boom

“My ever increasing involvement and identification with the poor only continues to widen the gap between my obedience to religious authority and my own understanding of what my life as a Christian must entail.”

From Los Angeles Times Sep. 18, 2026

He argued that "those who come to my shows do not expect a political forum" and stressed he was not responsible for Macklemore being removed from the tour.

From BBC Sep. 18, 2026

“Over the past few days, I have listened closely to the conversations, concerns, and heartfelt feedback shared across our community following my presentation honoring Chris Brown with a state resolution,” Jones said.

From Los Angeles Times Sep. 17, 2026

"Over the last couple of months my whole TikTok and Instagram is just people learning to drive. It's like my algorithm knows, it's quite scary," she said.

From BBC Sep. 17, 2026

Later, my mind drifting, I watch Caesar sleeping with his revolver resting on the ground beside him.

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

Mark Bernstein, then-board chair, said at the time it would be tantamount to “selling our soul to private capital.”

From The Wall Street Journal Sep. 18, 2026

“No family should have to suffer the loss of a child, and our thoughts continue to be with the Normandin-Parker family,” an Uber spokesperson said in a statement.

From Los Angeles Times Sep. 17, 2026

The Government wants us all to start preparing for severe disruption to our lives.

From BBC Sep. 17, 2026

“Over the past few days, I have listened closely to the conversations, concerns, and heartfelt feedback shared across our community following my presentation honoring Chris Brown with a state resolution,” Jones said.

From Los Angeles Times Sep. 17, 2026

To the merchant, he says, “Thick rope, tarp to keep our goods dry. We’ll need the protection.”

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

"I don't think it's dawned on us it's really ours," says Conroy, a video editor.

From BBC Sep. 17, 2026

They’re surprisingly warm inside, and ours made a cozy setting for pork belly skewers, crab puffs and smoked cocktails.

From Salon Sep. 8, 2026

It’s offensive because cases like ours could have been settled for significantly less than what the verdict is.”

From Los Angeles Times Aug. 22, 2026

But if we don’t sustain their vitality, how will they sustain ours?

From The Wall Street Journal Aug. 21, 2026

“But Liz is in ours and I have to get to the bus.”

From "Wayward Creatures" by Dayna Lorentz

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