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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 move comes less than a week after Seven & i decided against proceeding with a potential investment in ⁠Zabka.

From The Wall Street Journal Jul. 31, 2026

The deal, if successful, would be the largest-ever acquisition for the owner of Circle K, which abandoned a $47 billion takeover attempt of Seven & i, the Japanese owner of 7-Eleven, last July.

From The Wall Street Journal Jul. 31, 2026

"Fury over Fifa plan to sell off World Cup" is the i Paper's headline, writing that it comes after its boss "Gianni Infantino plans to sell stakes to private investors, potentially earning him millions".

From BBC Jul. 29, 2026

"Burnham era begins with radical pledge to transform UK" says the i Paper, in reference to the former mayor of Greater Manchester's inaugural speech on the steps of No 10.

From BBC Jul. 21, 2026

They had just cleared off the plate i rom the man who had been at the counter.

From "Life Is So Good" by George Dawson

"Nobody told me how dangerous it is to be president, and if they had told me, I probably wouldn't have run," one White House official recounted Trump as saying.

From BBC Aug. 12, 2026

“All I can think is when his time comes he is going to meet his mate again in heaven.”

From Los Angeles Times Aug. 11, 2026

“I try not to anthropomorphize, but I feel her loss,” he said.

From Los Angeles Times Aug. 11, 2026

"It was fantastic - I could carry on going to college, going out with my friends. The seizures stopped," she told BBC News NI.

From BBC Aug. 11, 2026

I think: So many eyes are watching me.

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

And that there never came-99--vol i- gold or stone upon her head, till her sister forced her to lay off her former soberness, and bear her company in her glittering gayness.

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

Then came Thomas Cobham, whom sir Thomas Poins took in, and said; 'Alas, master Cobham, what wind headed you to work such-160--vol i- treason?'

From Memoirs of the Court of Queen Elizabeth by Lucy Aikin

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

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

See Lankester’s Treatise of Zoology, vol. i. fasc.

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

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

Jef I. Richards is a professor emeritus of advertising and public relations at Michigan State University’s College of Communication Arts and Sciences.

From The Wall Street Journal Apr. 15, 2026

We sat on at the table, Beatrice and I. Mice hear better than humans.

From "Secrets at Sea" by Richard Peck

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

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

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

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

In a statement read to the public inquiry examining how Letby was able to attack babies, Child I's mother said: "I believe the doctors and nursing staff should have acted earlier."

From BBC Sep. 19, 2024

I's the one what set him to dusting.

From "How It Went Down" by Kekla Magoon

Don’t miss: ‘I want to meet someone rich. Is that so wrong?’

From MarketWatch Aug. 11, 2026

"Is he simply going to ramp up the name of Liverpool in order to make as much money as possible?"

From BBC Aug. 11, 2026

The company will launch a $1 billion “Future Is For Everyone Fund” to directly support communities around the facilities—giving itself a new talking point to deploy against the rising tide of anti-data-center activism.

From The Wall Street Journal Aug. 10, 2026

Only three Ramones songs ever made it to the Billboard Hot 100 — “Rockaway Beach,” “Sheena Is A Punk Rocker,” and “Do You Wanna Dance,” all absolute bangers that should be enshrined in the culture.

From Salon Aug. 10, 2026

“Weren’t you single last month? Is that so hard to remember?”

From "South of Somewhere" by Kalena Miller

“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

She wrote in big curling script, and she dotted her letter i’s with stars.

From "Hopping Mad (The Hardy Boys: Secret Files, #4)" by Franklin W. Dixon

That might be why “Slow TV” is taking off.

From Los Angeles Times Aug. 11, 2026

UK ministers say replacing and upgrading decades-old infrastructure is vital for distributing renewable power and improving energy security.

From BBC Aug. 11, 2026

“Something has happened and I believe in his own way he is going to be grieving and I feel so sad for him,” said North Carolina’s Wendi Cornett.

From Los Angeles Times Aug. 11, 2026

UK Energy Minister Michael Shanks said upgrading the grid is "a vital part of how we deliver secure, homegrown energy and unlock economic growth across the country."

From BBC Aug. 11, 2026

The Philippines is rich with magical legends and folktales, but it’s rich with resources too—sugar, timber, gold, tobacco, and hemp, which can be used for paper, rope, and textiles.

From "At Last She Stood" by Erin Entrada Kelly

“Beloved Jackie showed us resilience and strength and the beauty of nature and how she stood for what we all want to believe,” said Patricia Hiscox of Long Island, N.Y.

From Los Angeles Times Aug. 11, 2026

"This is the first flood we have experienced in this area in our lifetime," she says.

From BBC Aug. 11, 2026

“They deepened my respect for all wildlife, not just bald eagles, and reminded me that we, as humans, must do more to protect wildlife habitats around the world,” South Pasadena’s Annette Gray said.

From Los Angeles Times Aug. 11, 2026

"Retailers face the dilemma of supporting British farmers, but also making sure that we, as customers, have what we expect to buy when we go in the shop," he said.

From BBC Aug. 11, 2026

I get in with my dad, and we go the long way like I suggested.

From "Split the Sky" by Marie Arnold

“To me she represents the strength and resilience of this great country I love,” said Christine Bunke from Dewey, Ariz. “It may be flawed but it was never not great.”

From Los Angeles Times Aug. 11, 2026

"There was a lot more things they could have done to make me feel supported", she says.

From BBC Aug. 11, 2026

"Since yesterday, I got here and I haven't left. Until they give me the body, I'm not leaving this place," Gonzalez tells AFP.

From Barron's Aug. 11, 2026

You might drop this paper with an “ick” if you knew how many readers proved my point by shrieking “denier” at me.

From The Wall Street Journal Aug. 11, 2026

Father is shouting, but for me, his mouth makes no sound.

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

“Beloved Jackie showed us resilience and strength and the beauty of nature and how she stood for what we all want to believe,” said Patricia Hiscox of Long Island, N.Y.

From Los Angeles Times Aug. 11, 2026

On top of the remains are rescuers and volunteers: "Silence! We are firefighters. If you can hear us, shout or make any noise."

From BBC Aug. 11, 2026

The data probably will never tell us reliably how much fossil fuels were responsible.

From The Wall Street Journal Aug. 11, 2026

Presidents rightly expect more security than the rest of us, but that typically comes with greater scrutiny of their locations and activities too.

From Slate Aug. 11, 2026

We pull up to Wes’s place and he waves at us from the porch.

From "Split the Sky" by Marie Arnold

One other factor leading to higher prices is the continued disruption to mine supply.

From MarketWatch Aug. 11, 2026

To investigate, the team collected mine water from a flooded uranium mine in the Ore Mountains belonging to Wismut GmbH.

From Science Daily Aug. 9, 2026

"This son of mine has no father, no birth certificate and no national number," Amira, whose name has been changed to protect her identity, tells the BBC.

From BBC Aug. 7, 2026

The bank raises its share-price target to A$13.00 from A$12.00 to reflect increased expected mine life and output at some operations.

From The Wall Street Journal Aug. 7, 2026

Her lips turn up in a forced smile and her eyes settle, heavy on mine.

From "Red Flags and Butterflies" by Sheryl Azzam

“They deepened my respect for all wildlife, not just bald eagles, and reminded me that we, as humans, must do more to protect wildlife habitats around the world,” South Pasadena’s Annette Gray said.

From Los Angeles Times Aug. 11, 2026

"It's not my business... I work here just for the salary."

From BBC Aug. 11, 2026

"That's not my job. I cover the president. Reporters take risks as part of the job, but not on behalf of the president."

From Barron's Aug. 11, 2026

Finally, my wife plans to file for Social Security when she turns 62 next May.

From The Wall Street Journal Aug. 11, 2026

“Midnight will tell you. His breathing will be harsh, labored. Sweat will make his coat shine. But, Will”—Caesar’s hands rest on my knee—“if you ask him, Midnight will give you his heart.”

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

“She was a beautiful and true representative of our nation.”

From Los Angeles Times Aug. 11, 2026

The Belfast Trust has said she "has a complex condition which means she has undergone several surgeries within Belfast Trust, and remains an outpatient in our care with her next appointment later this month".

From BBC Aug. 11, 2026

“It provides additional financial flexibility, and supports our pursuit of an investment grade rating,” he added.

From The Wall Street Journal Aug. 11, 2026

“California will keep moving toward pest management practices that protect health and our ecosystems.”

From Los Angeles Times Aug. 11, 2026

He’s remembering how hard our journey was—the weariness, the cold, the dangers on land and the treacherous waters.

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

Salzburg’s worries are our worries; its triumphs can be ours as well.

From Los Angeles Times Aug. 5, 2026

As much as we might wish otherwise, Kylie Jenner and Taylor Swift are not like us, and we cannot measure their autonomy and power on the same scale as ours.

From Slate Aug. 5, 2026

Her world looks and operates like ours, and that means there are no free lunches.

From Salon Jul. 30, 2026

“They’re a partner of ours at the same time they’re competing with us, and I think that’s also great,” he said.

From The Wall Street Journal Jul. 24, 2026

It’s a Monday, but schools and stores are closed for the celebration, so everyone in the neighborhood is heading to the parade—Greek, Armenian, and Muslim families, along with a few Spanish Jewish families like ours.

From "Across So Many Seas" by Ruth Behar

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