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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:

"Three-quarters of England, and all of Wales, now officially in drought," the i Paper writes, with "no sustained rain on the horizon".

From BBC Aug. 10, 2026

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

"Race against time" says the i Paper, next to a photo of a French firefighter standing in front of a burning row of trees and tall grass.

From BBC Jul. 27, 2026

You put a heart above the i in your name, like you did all through middle school.

From "P.S. I Miss You" by Jen Petro-Roy

"I have read all the time I'm number one on their list," he told them.

From BBC Aug. 12, 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

“I believe that, as a human, I learned a lot from her, Shadow and their offspring.”

From Los Angeles Times Aug. 11, 2026

I am grateful to her - it's not her fault.

From BBC Aug. 11, 2026

“Belle can only pull so much,” I say, anguished.

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

A remarkable incident soon served to intimate the coolness and caution with which it was her intention-254--vol i- to proceed in re-establishing the maxims of the reformers.

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

Cecil replied, "Yes, madam,-282--vol i- and she says your majesty would like to do so too;" lord Robert Dudley then filling the office of master of the horse to the queen.

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

Combining the results from parts i. and ii., draw a rough sketch of f .

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

There is in chh. i.-iv. a 'teaching of baptisms' and of endowment with the Spirit corresponding roughly to Mark i. 1-45.

From The Making of the New Testament by Benjamin Wisner Bacon

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

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

I’ve been a huge Robyn fan for most of my life — she’s kind of a north star for my sisters and I. It’s no secret that we love sad dance songs.

From Los Angeles Times Jun. 18, 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

In a recent study, Purusharth I. Rajyaguru and colleagues used Saccharomyces cerevisiae, a type of yeast commonly used in research, to explore how life might respond to Mars-like stress.

From Science Daily Apr. 12, 2026

“Where are you to live?” said I. “What is to be done with you? Where will you be safe?”

From "Great Expectations" by Charles Dickens

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

First log on as root, and then type dpkg -i icewm_0.8.12-1.deb, and icewm version 0.8.12 will be installed.

From Debian GNU/Linux : Guide to Installation and Usage by John Goerzen

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

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

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

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

Child I's mother suggested senior managers should face sanctions if they ignore whistleblowers' concerns.

From BBC Sep. 19, 2024

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

“Son, I’s gwine ax you to come up to de house wid me. My old feets, dey cain’ make it back down heah agin today.”

From "Cold Sassy Tree" by Olive Ann Burns

Is he trying to scare parents into not inoculating children?

From The Wall Street Journal 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

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

Is this a phishing scam — or am I suddenly popular?

From MarketWatch Aug. 10, 2026

Is that how little they care about me?

From "South of Somewhere" by Kalena Miller

"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

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

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

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 Grammy-nominated band, which formed in Houston, is known for its edgy blues twang in popular singles including “La Grange” and “Tush” and across 15 studio albums.

From Los Angeles Times Aug. 11, 2026

Ministers say the lack of capacity means some wind farms are sometimes paid to switch off because there is not enough network infrastructure available to carry the electricity to homes and businesses that need it.

From BBC Aug. 11, 2026

Blindness is always a concern with leprosy patients, but her vision is good.

From "At Last She Stood" by Erin Entrada Kelly

“Jackie and Shadow were parents we all pray we can be,” said Kathy Wimmer of North Carolina.

From Los Angeles Times Aug. 11, 2026

"Although we know they happen quite often we're not always in the path of totality - they could be over the Pacific Ocean, but to have it over land is just incredible," he said.

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

Phillip, whose name we have also changed, moved to Forest City from Singapore last year, attracted by the relatively cheap property market and the idea that he could get more value for his money.

From BBC Aug. 11, 2026

Looking about us, all we see is miles of debris from hastily left sites.

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

I do the same with a water bottle at home and it’s just as cooling — instantly — but the rose water’s delicious scent left me feeling especially pampered.

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

Astonishingly, he lifts me off my feet, twirls me twice.

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

“Jackie and Shadow were a love story for the ages and gave us both hope during very tumultuous times,” she wrote.

From Los Angeles Times Aug. 11, 2026

"Trying to find people that will accept potatoes like that is very difficult. So that ultimately means a lot of wastage for us," Munns added.

From BBC Aug. 11, 2026

Only experience will tell us how much temperatures actually change in the coming decades.

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

The thing is, not all Black girls want to be magic; some of us just want to be.

From "Split the Sky" by Marie Arnold

In 2026 there have been multiple hits to production worldwide and to accommodate for this, Price adjusts his global mine supply forecast by 3.5% every year.

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

Her eyes penetrated mine as I waited for a loud Tibetan gong to sound.

From Los Angeles Times Aug. 7, 2026

Brooke Warner, publisher of She Writes Press and co-host of the Memoir Nation podcast, says this has put pressure on memoirists to push the envelope and find ever-more-shocking traumas to mine.

From The Wall Street Journal Aug. 5, 2026

And if his were gone, mine could not be far behind.

From "The Teacher’s Funeral" by Richard Peck

At the time, Rodríguez posted a picture of a large ring, writing "Yes I do. In this and in all my lives" in her native Spanish.

From BBC Aug. 12, 2026

“I started watching Jackie and Shadow in 2021 during the pandemic, and they played a vital role in my personal journey in reconnecting with the outdoors since then,” said El Segundo resident Phil McRae.

From Los Angeles Times 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

During our exchange, she noted that my views on academic freedom were also found among “faculty with libertarian leanings.”

From The Wall Street Journal Aug. 11, 2026

Cooking, I try my best to balance the temperature and heat.

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

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

From Los Angeles Times Aug. 11, 2026

"We're very good at keeping secrets, as our name says. Everybody doesn't need to know everything."

From BBC Aug. 11, 2026

When a seller cannot—or chooses not to—deliver, customer support tells buyers they are covered by the FanProtect Guarantee, which promises the company will “do our best” to find “comparable or better” replacement seats.

From The Wall Street Journal Aug. 11, 2026

“We affectionately nicknamed ourselves the ‘Bird Nerds,’ and our classroom became a place where we watched the live feeds, shared excitement, asked questions and learned together.”

From Los Angeles Times Aug. 11, 2026

Outside the window, our next-door neighbors—an elderly couple, Mr. and Mrs. Brown—paint over the red graffiti spray-painted on their porch.

From "Split the Sky" by Marie Arnold

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

Another framed the problem in even starker terms: What impact would Anthropic’s revenue surpassing ours have on our IPO plans?

From The Wall Street Journal Aug. 1, 2026

Anthropic added that it is "approaching the fixes as if the responsibility were ours alone."

From BBC Jul. 31, 2026

“Did you or did you not write the school a lot like ours, Ty?”

From "The Manifestor Prophecy" by Angie Thomas

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