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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  
/ 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 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  

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- 4 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 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

    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 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  

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:

"Find the money to fund end-of-life care," is Lord Blunkett's "plea to Burnham", according to the i Paper.

From BBC Sep. 7, 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

The i Paper also leads on the "huge legal bill" for the prince and other celebrities including Liz Hurley and Sadie Frost.

From BBC Aug. 22, 2026

Well, this book’s position is that yesterday’s custom can be safely ignored. i TOMBSTONE: Use It is I, not It is me.

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

"I want to score every game. Everyone is different. Some like to set targets and some don't. I'm the one that doesn't."

From BBC Sep. 18, 2026

"He came with his football - the way he wants to play and the high intensity which I think will benefit me, the club and the way the club wants to play football," added Isak.

From BBC Sep. 18, 2026

She said: "I really do believe we can break it, but a lot of things have got to come together."

From BBC Sep. 18, 2026

"I was devastated," recalled Rachelle, who is not considering returning to Haiti due to the unstable security situation there.

From Barron's

The next day, I blurt, “What’ll make you happy?”

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

The old ‘Minor Declensions’ had begun to pass over into the vocalic, especially into the i- and a-, declensions in the oldest OHG.

From A Middle High German Primer Third Edition by Joseph Wright

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

Mary received her in her chamber, to which she had now confined herself in expectation of that joyful-192--vol i- event which was destined never to arrive.

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

Hist. of the Norman Conquest, vol. i. pp. 33-34.

From History of European Morals From Augustus to Charlemagne (Vol. 2 of 2) by William Edward Hartpole Lecky

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

In that way, I feel creatively redeemed on some level, just in my own journey between me, myself and I. But I feel ready to move on from the ‘Blade’ questions.

From Los Angeles Times Aug. 3, 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

As soldiers, Jews had fought for Germany during World War I. Many were decorated for bravery.

From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti

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

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

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

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

Pg 62 Sometimes it is not. toumba, to fall. toumbarèu, -ello, likely to fall. canta, to sing. cantarèu, -ello, songful. crese, to believe. creserèu, -ello, inclined to belief. -i.

From Frédéric Mistral Poet and Leader in Provence by Charles Alfred Downer

Judges were unmoved that Luitpold’s forebears had brewed in the region since 1260, written the purity law and invented Oktoberfest for his great-great-grandfather King Ludwig I’s 1810 wedding.

From The Wall Street Journal Sep. 7, 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 going to do anything about it? No," he added.

From BBC Sep. 18, 2026

Is the iPhone Duo discriminating against left-handed users?

From The Wall Street Journal Sep. 17, 2026

Is this a good time to take out a HELOC?

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

“Am I still there? Is this a dream? Am I dead?”

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

"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

“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

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

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

A right of way has now been established, while the council has been ordered by the courts to pay £50,000 costs and to ensure her access is not impeded again.

From BBC Sep. 18, 2026

The site is central to a restoration programme that aims to boost this type of specialist habitat across the county.

From BBC Sep. 18, 2026

"They created a theatre of 750 seats in the round, a democratic arena where the alchemy between actor and audience is at its most purest form and they've created something that still feels fresh today."

From BBC Sep. 18, 2026

He argued that it fed the dream that it could lead to greater riches for a population that is often battling to make ends meet.

From BBC Sep. 17, 2026

He says he doesn’t think it’s appropriate for her to be friends with any of the men at Carville, because she is married.

From "At Last She Stood" by Erin Entrada Kelly

"It wasn't actually something we had in mind when we were developing the exhibition, or even when we asked the National Gallery if they would lend this painting," he explained.

From BBC Sep. 18, 2026

“With short positioning stretched and Fed pricing aggressive, we expect the 10Y Treasury yield to consolidate in a 4.90-5.10% range for now.”

From The Wall Street Journal Sep. 18, 2026

"He said 'score goals', but he wants me to defend. The way we defend - we defend to score goals so defending, in the end, is an attacking weapon."

From BBC Sep. 18, 2026

"In the event of a spill, we will inevitably be affected. Water has no borders," said the 57-year-old chief.

From Barron's

Instead, we use his fear against him because, well, it’s just much more fun.

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

"He said 'score goals', but he wants me to defend. The way we defend - we defend to score goals so defending, in the end, is an attacking weapon."

From BBC Sep. 18, 2026

"Personally, I'm not fearful of the Australian animals but I've never had a crocodile near me," he 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

Surprised, the man, eyes cold, squints, stares like he can see inside me.

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

They tried to put us off but they messed with the wrong ones.

From BBC Sep. 18, 2026

“We thank the researchers for contacting us and sharing their findings. We narrowed the permissions on Community sign-in tokens and revoked affected tokens and sessions,” the company said.

From The Wall Street Journal Sep. 18, 2026

"I think he's holding us back," said one of the party's spokespeople who is planning a tilt at the leadership if a race is triggered.

From BBC Sep. 18, 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

And in the confusion, some of us can escape.

From "At Last She Stood" by Erin Entrada Kelly

“La Opinión helped families like mine stay informed about what was happening in our communities and gave Spanish-speaking Angelenos a voice,” she said in a written statement.

From Los Angeles Times Sep. 16, 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

On April 19, it struck a British mine and sank.

From Science Daily Sep. 14, 2026

He smiles and tilts his head down, allowing his lips to brush mine, much like they did the first time on the path, and I know things are okay between us.

From "Red Flags and Butterflies" by Sheryl Azzam

"Many people in my era either had to take unpaid leave or resign, or they got sacked because they were trying to juggle their sports with their career," she said.

From BBC Sep. 18, 2026

“I am intentional about making sure I’m eating enough and getting my protein.”

From The Wall Street Journal Sep. 18, 2026

"At my age you don't know how many years you have left, and this has given me three years-plus of stress but now we have proven they blocked our rights."

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

When I blow my harmonica, he won’t sing.

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

Nick Robinson has a conversation with, not an interrogation of, the people who shape our political thinking about what shaped theirs.

From BBC Sep. 18, 2026

“We took 25% of our production engineers and said ‘Sorry, all your projects are on hold.

From The Wall Street Journal Sep. 18, 2026

"At my age you don't know how many years you have left, and this has given me three years-plus of stress but now we have proven they blocked our rights."

From BBC 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

In the kitchen, Aunt J is making our usual birthday breakfast—rabbit-shaped pancakes with chocolate chips for eyes, bacon, and eggs.

From "Split the Sky" by Marie Arnold

“It looked like this newsroom has money and ours doesn’t,” Koman adds.

From Los Angeles Times Sep. 11, 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

He said the premium still felt like a "death tax" and the family were being "penalised through no fault of ours".

From BBC Sep. 7, 2026

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

From The Wall Street Journal Aug. 21, 2026

Might be you decide this strange pack of ours is your best option.

From "Wayward Creatures" by Dayna Lorentz

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