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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 i Paper says Chancellor John Healey will announce a new ISA which will help older first-time buyers in Britain.

From BBC Sep. 8, 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

Housing Secretary Angela Rayner says every homeless person across England will be offered a bed by Christmas, the i Paper reports.

From BBC Aug. 18, 2026

“Multiplying by i turns the vector ninety degrees to the left and does not change the length,” Jake said.

From "The Smartest Kid in the Universe" by Chris Grabenstein

Asked if there was ever a point last season when he regretted the move, Isak replied: "No, never. I would never think like that."

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

He added: "I know they've done it with a florist before, and I think they've done it with an ice cream parlour before."

From BBC Sep. 18, 2026

"We help them, but when it came to helping us, I didn't put on a heavy sell; But I just said, 'Would you like to participate?'"

From Barron's

Nostalgic memories of muddy Mississippi follow wherever I go.

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

For the face I grant I might well blush to offer,-104--vol i- but the mind I shall never be ashamed to present.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

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

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

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

Hist. of Latin Christianity, vol. i. pp. 214-215.406.Milman,

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

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

He also urged them not to allow partnerships between large corporations and the military, the way the German scientific community and government did with I. G. Farben and Krupp Armaments and Steel.

From Los Angeles Times Jun. 8, 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

She was happier than I’d seen her in ages, and so was I. As we left the house that morning, she kissed me goodbye, and then whispered something in my ear as she hugged me.

From "An Elephant in the Garden" by Michael Morpurgo

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

Nouns ending in -a, -e, -i, -y, -o, -l, -n, -t, -ar, -ur, -ŭs are Neuter.

From New Latin Grammar by Charles E. (Charles Edwin) Bennett

The suffix of manner defining the verb, is formed by adding the adjective with the final syllable changed to -i.

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

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

“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

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

From MarketWatch Sep. 15, 2026

‘What guide? Why must I find the Mountain? Will I be safe there? Is that it? Safe from the bear?’

From "Wolf Brother" by Michelle Paver

“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

“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

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

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

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

The rare habitat is home to deep-rooting wild flowers and grasses like great burnet and devil's-bit scabious.

From BBC Sep. 18, 2026

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 land is rich and diverse, with mountainous country, coastal plains, jungles, river systems, lakes, and volcanic rock.

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

We have academics in the morning, then gym or whatever PE class we are required to take.

From "Split the Sky" by Marie Arnold

"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

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

From Los Angeles Times Sep. 18, 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

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

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

“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

Dozens of affected women and their families contacted us following our earlier reporting.

From BBC Sep. 17, 2026

Caesar croons, “Will you come with us, Anna, George’s dear?”

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

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

“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

"Macklemore coming off tour was the promoter's decision, it was not mine," he wrote.

From BBC Sep. 15, 2026

His gaze drills into mine, concern mixed with empathy, and a weird, edgy feeling comes over me, like he knows something I don’t.

From "Red Flags and Butterflies" by Sheryl Azzam

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

“We’re getting to the point where my solutions are starting to disappear,” she said.

From The Wall Street Journal 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

“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

And I’m feeling flustered, worried Grandpa and Ma might discover my secret.

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

A frontbencher said: "With the possible exception of our position on Trump, you could characterise most of our press lines as 'a Lib Dem spokesperson said, steady on now, gently does it'."

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

"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

We both do our best to wipe our arms, hands, and faces clean.

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

Whenever he seems confused, I’m delighted; it’s reassuring to see someone so smart still struggle to fathom this thing of ours.

From The Wall Street Journal Sep. 15, 2026

“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

"Back then, the settlers were living alongside us, and we coexisted peacefully. They lived their lives and we lived ours," he told me.

From BBC Aug. 21, 2026

Like most private telephones ours had been disconnected early in the occupation.

From "The Hiding Place" by Corrie ten Boom

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