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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:

The latest allegations will "escalate the row" with the Palace, the i Paper says.

From BBC Sep. 17, 2026

"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

Then imaginary numbers are represented by a line going up and down the page, with i, 2i, etc. above the middle, and —i, —2i, etc. below.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

"I just think I'm so fortunate that I was in a sport where everybody accepted that you have men and women's races in the Olympics."

From BBC Sep. 18, 2026

"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

She added: "I knew this would probably be my last chance, because there were other girls in Britain trying to do it."

From BBC Sep. 18, 2026

"I don't think it does our reputation as a welcoming destination any good and can become quite damaging -- tourism is an important part of the Australian economy," she told AFP.

From Barron's

“No, Father! Let me. Belle,” I call, cajoling, “Belle, you can do it. You can do it, girl.”

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

Letters and proclamations were at the same time dispersed by Ashton, in-212--vol i- which the name of Elizabeth was employed without scruple.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

By a change he had every thing to lose, and nothing to-129--vol i- gain.

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

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

The courts, however, generally held that extraterritorial notice of copyright, i. e. on foreign editions, was impracticable and unnecessary; and this view is specifically adopted in the new code.

From Copyright: Its History and Its Law by Richard Rogers Bowker

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

Soccer: it’s been a long time coming between you and I. But here I am!

From Los Angeles Times Jul. 20, 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

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

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

The suffix -i, added to a noun stem, forms generally a neuter verb.

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

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

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

Every Esperanto verb has three Moods—the Conditional, the Imperative, and the Infinitive, which are formed respectively by means of the endings -us, -u, and -i.

From Esperanto Self-Taught with Phonetic Pronunciation by William W. Mann

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

“Yeah, it takes us a little longer, but we dot our I’s and we cross our Ts,” she said.

From Los Angeles Times Nov. 22, 2024

I ain’t never been away from Mama afore so I’s scared to death, kept thinking they waren’t never gunn bring me back.”

From "Elijah of Buxton" by Christopher Paul Curtis

Is the iPhone Duo discriminating against left-handed users?

From The Wall Street Journal Sep. 17, 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 the rise too much or not enough?

From BBC Sep. 15, 2026

Is it vertical applications like Harvey for legal or Cursor for coding?

From MarketWatch Sep. 15, 2026

Is this where she lived and slept and wrote in her diary and —was Luc in this room, too?

From "The Brightwood Code" by Monica Hesse

"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

It’s just making sure our i’s are dotted and our t’s are crossed.

From The Wall Street Journal Mar. 30, 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 recognized your tiny handwriting right away, all wobbly and with those weird loops you put on top of your t's and i's.

From "When You Reach Me" by Rebecca Stead

The auction comes ahead of the release of Marr's first studio album in four years, The Age Of Everything, which is due out on 2 October.

From BBC Sep. 18, 2026

Mythic Reinvention: An exhibition celebrating 50 Years of Costume and Craft is open until 15 November.

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

The Mythic Reinvention exhibition, which is free, includes just a small fraction of the theatre's collection.

From BBC Sep. 18, 2026

One of the first things she writes is an essay about what it means to live in a small, confined community where you interact with the same people every day of your life for years.

From "At Last She Stood" by Erin Entrada Kelly

"He asks me to be part of the defending but to defend in positions where, when we win the ball, we can counter quickly and get the ball forward to the offensive line," said Isak.

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

"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

"And we will continue to uphold it going forward."

From Barron's

The farther we get from Mr. Thompson’s farm, the more the wide-open, remote land stirs him with wonder.

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

"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

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

From Los Angeles Times Sep. 18, 2026

Believe what you want, she said, "just don't press it on me".

From BBC Sep. 18, 2026

Before I started working, Murano to me, was one door: my grandfather’s factory.

From The Wall Street Journal Sep. 17, 2026

“I don’t think those thieves will be circling back,” he says to me and Father.

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

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

From BBC 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

She had friends that lived near the swamps, and she’d have them show us around.

From "Split the Sky" by Marie Arnold

“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

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

From Science Daily Sep. 14, 2026

The expected range is roughly 250-850 nanograms per deciliter; mine was 1,295.

From The Wall Street Journal Sep. 12, 2026

She crossed over and put her hand on mine, which was gripping the post.

From "The Red Car to Hollywood" by Jennie Liu

She added: "I knew this would probably be my last chance, because there were other girls in Britain trying to do it."

From BBC 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

“We’re trying to shift our mindset,” Mitchell said, “and not try to hold ourselves to the expectations of what I saw my mom do.”

From The Wall Street Journal Sep. 17, 2026

“Seems like I ought to help. Become a land rush man. Set aside my guns. California and the Pacific Ocean aren’t going anywhere.”

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

"It will be a chance to celebrate every individual who has helped create and shape this beloved theatre as we look to our future."

From BBC Sep. 18, 2026

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

"That shows you that our strategy is definitely working."

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

But she takes one look at our faces and her light tone changes.

From "Split the Sky" by Marie Arnold

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

The messages prompted a quick response from the state’s governor, Democrat Michelle Lujan Grisham, who said that “New Mexico’s name isn’t up for debate—it’s been ours since before the United States existed.”

From The Wall Street Journal Sep. 7, 2026

Dolly was one of us, ours, but of course she was also much more.

From Salon Aug. 26, 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

“The wolves have been our protectors while we were in their native habitat,” she thought, “but if they are seen in ours, it will not be so easy for us to protect them.”

From "The Unseen Guest" by Maryrose Wood

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