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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

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 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

Olly: i’m a little harder to bully now than i was 2 years ago Olly: i’m meaner now. bigger too Madeline: You don’t seem mean.

From "Everything, Everything" by Nicola Yoon

"My school was very tolerant towards what I was doing, so I was fortunate."

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 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

Lee said Friday it was "clear" that "Trump wants dialogue, and I am also urging President Trump to engage in dialogue."

From Barron's

Looking up, I see the mustached man counting money.

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 think ye guess whom they named; if ye do not, I-290--vol i- will upon my next letters write further.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

The queen immediately-18--vol i- retired, and the next day was committed to custody.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

With a just and pleasing confidence, the queen replied, 'I warrant you it is for-251--vol i- gladness,'" "How many nosegays did her grace receive at poor women's hands!

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

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

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

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

From Los Angeles Times Jul. 20, 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

She knew nothing about the place—and of course, neither did I. Nothing.

From "Facing the Lion" by Joseph Lemasolai Lekuton and Herman Viola

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 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

Thus final -o bespeaks a noun; -a, an adjective; -e, an adverb; -i, an infinitive, etc.

From International Language Past, Present and Future: With Specimens of Esperanto and Grammar by Walter John Clark

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

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's a very different offering up there. You've still got beaches, but then you've got greenery and mountains and wildlife."

From BBC Apr. 18, 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

“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’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

Watch: Is Canada about to join the EU?

From BBC Sep. 17, 2026

Is it 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

Is this market like 1999 all over again?

From The Wall Street Journal Sep. 15, 2026

Is it possible that he was never asking to be connected to the Forty-Eighth regiment?

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

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

"Your proposal does not adequately acknowledge the multiple and significant challenges such a transaction would face from US competition law enforcement agencies," Seven & i's letter added.

From BBC Sep. 5, 2024

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

"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

When customers asked why their drink was free, his staff told them "because Harry Styles is buying everyone's coffee today," he said.

From BBC Sep. 18, 2026

The earliest date for a decision by the Parades Commission on the planned Drumcree march by Portadown Orange Order is 23 September – four days before the scheduled parade.

From BBC Sep. 17, 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

But Joey wants to stay where she is, looking straight ahead at a future in America.

From "At Last She Stood" by Erin Entrada Kelly

"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

“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

And the term "Yangote" – a pun in the Hausa language essentially meaning "we all have a share now" - has been trending on social media.

From BBC Sep. 17, 2026

"The scale of it is much, much bigger than what we see actually based on the seizure data," said Jimmy Borah of the environmental advocacy group Aaranyak.

From Barron's

For the next twenty minutes, we talk and banter, and I decide that Candie might be a chill person.

From "Split the Sky" by Marie Arnold

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

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

This summer it occurred to me that my understanding of alignment might be wrong.

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

He reminds me of the poor white sharecroppers who tilled Mr. Thompson’s land.

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

"It is no longer Dangote but 'Yangote', the company belongs to us now," he said while laughing.

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

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

From BBC Sep. 17, 2026

According to the rundown Dad gave us, she recently moved here from Atlanta.

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

“Increased mining rates at Break of Day following the Stage 2 cutback, along with mine life extensions at Penny, should drive higher head grades through FY27 and FY28,” says the broker.

From The Wall Street Journal Sep. 14, 2026

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

From Science Daily Sep. 14, 2026

He pushes upward, both feet on the axle, his head almost level with mine.

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

Marr said: "The auction has been a great experience and has exceeded all my expectations. I'd like to thank everyone who made bids and special thanks to Christie's for making it so memorable."

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

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

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

"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

The gift that Abigail gave our family didn’t come with any warnings.

From "Split the Sky" by Marie Arnold

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

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

In July, outgoing prime minister Sir Keir Starmer issued a formal apology to those mothers, telling them: "The shame is not yours... the shame is ours."

From BBC Aug. 30, 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

Then I remembered that Leendert was away for a few days setting up electrical warning systems like ours in several of our host homes.

From "The Hiding Place" by Corrie ten Boom

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