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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  
  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. 4 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 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  

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 7 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 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 also leads with the spy chief's speech, quoting him as saying threats from foreign adversaries have quadrupled in a decade.

From BBC ● Oct. 14, 2026

“Dr. Williams has always maintained that he was acting i self-defense,” Libman wrote in an email.

From Los Angeles Times ● Oct. 9, 2026

“The objective is not to do an IPO. The objective is to increase shareholder value,” said Stephen Dacus, CEO of Seven & i.

From The Wall Street Journal ● Oct. 9, 2026

The Canadian retail conglomerate ultimately withdrew its offer over friction around valuation gaps and antitrust issues in the U.S., prompting Seven & i to focus on restructuring and a standalone North American IPO strategy.

From The Wall Street Journal ● Oct. 9, 2026

“Do not lie, Olanna Ozobia, i sikwana asi!”

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

“I wanted to be independent, but first I was alone and would soon be lonely,” Lagarde recalled later.

From The Wall Street Journal ● Oct. 31, 2026

David Hemingson, the creator of ABC’s “Whiskey Cavalier” and a veteran television writer for shows including “Kitchen Confidential” and “How I Met Your Mother,” was also named as a defendant in the lawsuit.

From Los Angeles Times ● Oct. 31, 2026

"I love to travel, I thought, 'what the heck? Let's see what this is all about'."

From BBC ● Oct. 31, 2026

“It’s a reluctant view,” Clark wrote, “because the implications are so large that I feel dwarfed by them.”

From The Wall Street Journal ● Oct. 31, 2026

I ask, but nobody pays me any mind.

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

This prefix thus appears as en-, i-, il-, im-, in-, ir-, as enemy, ignoble, illegal, immortal, infirm, irregular.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

The prefix i- or y- is equivalent to the A.-S. or German ge, and usually denotes the past participle.

From Six Centuries of English Poetry Tennyson to Chaucer by James Baldwin

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

Laws respecting it, 245 Superstition, possibility of adding to the happiness of man by the diffusion of, i. 50-53.

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

He told me he is not seeing other people, and neither am I. Every year he goes to Mexico for six months.

From MarketWatch ● Sep. 19, 2026

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

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

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

The experience was not lost on the painters, and doubtless some of the sketches of the “Prelude to the Great Storm” will grace the R. A. and R. I. walls in May next.

From "Dracula" by Bram Stoker

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

Tarsus -i: the foot; the jointed appendage attached at the apex of tibia. bearing the claws and pulvilli.

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

I, except that some of them have imperatives in -i: vaki, þęfi; uni. lifa, sęgja have imper. lif, sęg.

From Icelandic Primer with Grammar, Notes and Glossary by Henry Sweet

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 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

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

Another important part of Victor I's legacy was to introduce Latin as the common language of the Catholic Church.

From BBC ● Apr. 28, 2025

“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

“Now don’t you mess with me this morning,” Elisha said, “because you ain’t got so holy I can’t turn you over my knee. I’s your big brother in the Lord—you just remember that.”

From "Go Tell It on the Mountain" by James Baldwin

Is that gushing sound from a bubble bursting?

From MarketWatch ● Oct. 30, 2026

“Has he inherited it from his dead parents? Is he a rentier, letting out hobbit-holes in Bagshot Row? Tolkien never says.”

From The Wall Street Journal ● Oct. 30, 2026

Is the point that the football players we meet are the role models for decency?

From The Wall Street Journal ● Oct. 29, 2026

Is TJ up for doing the work of opening minds?

From Los Angeles Times ● Oct. 28, 2026

Getting up from the bed, Papa looked at his watch and said, “Your mother and I are going to the store today. Is there anything you want me to tell your grandpa?”

From "Summer of the Monkeys" by Wilson Rawls

Now, there are still some t’s to cross and i’s to dot.

From Slate ● Oct. 3, 2026

In one of our final negotiation sessions, when we’re supposed to be dotting i’s and crossing t’s, he worries aloud about how these two vastly different companies are going to mesh their different cultures.

From The Wall Street Journal ● Sep. 15, 2026

"If I'm making a decision that is highly likely to be in legal challenge, I want to make sure I've dotted my i's and crossed my t's," she added.

From BBC ● Sep. 11, 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

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

Kenvue is being acquired and will therefore depart the index.

From Barron's ● Oct. 31, 2026

Good, another brilliant mathematician, “the first ultraintelligent machine is the last invention that man need ever make, provided that the machine is docile enough to tell us how to keep it under control.”

From The Wall Street Journal ● Oct. 31, 2026

"Behind these boards, there is neither power nor an enemy. Just a family and its work," read a message scrawled in black across the plywood protecting a Paris business.

From Barron's ● Oct. 31, 2026

And you don’t need any charts to see what that means: Fiction is on the verge of becoming science.

From The Wall Street Journal ● Oct. 31, 2026

One such man is Ishikawa Shingo, a captain in the Imperial Japanese Navy.

From "At Last She Stood" by Erin Entrada Kelly

“He would run two, three, four different scenarios by me, and I would put the kibosh on him until we finally said, ‘Yes, this one,’ ” Payne said in a 2023 interview.

From Los Angeles Times ● Oct. 31, 2026

As this technology accelerates its own evolution, the risk is that we struggle to keep pace and keep it under control.

From The Wall Street Journal ● Oct. 31, 2026

Her work focuses on the trends shaping what we wear and the people driving the fashion and luxury industries, as well as off-the-news style analysis.

From The Wall Street Journal ● Oct. 30, 2026

"It is such a good story so it has been a part of the Dungeon since we opened 25 years ago, " says Lyndsay Hebert, the venue's performance manager.

From BBC ● Oct. 30, 2026

After dinner, we don’t talk, just bunk down.

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

“He would run two, three, four different scenarios by me, and I would put the kibosh on him until we finally said, ‘Yes, this one,’ ” Payne said in a 2023 interview.

From Los Angeles Times ● Oct. 31, 2026

"Just me and a bunch of friends are coming over now", was how the project was later pitched, he said.

From BBC ● Oct. 31, 2026

“Nobody asks me about the debt,” Hoyer said.

From The Wall Street Journal ● Oct. 31, 2026

“One of the things that excites me about casting Batman is being able to pick a Batman who’s actually the best actor for that role,” he said.

From Los Angeles Times ● Oct. 30, 2026

Caesar leans down, handing me three skinned wild squirrels.

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

Within a decade, scientists were dreaming about machines that would be smarter than us at everything, including the design of machines.

From The Wall Street Journal ● Oct. 31, 2026

And we wanted to share the gift of that spirit with people dear to us, no matter how far we had to travel to do it.

From The Wall Street Journal ● Oct. 30, 2026

"The reality is, we've got to take it to them. They're not going to seek us out, why would they?"

From BBC ● Oct. 30, 2026

At the center of this object used for protection and to treat ailments, the child god stands atop a pair of crocodiles and grasps scorpions and snakes, guarding us against these threatening creatures.

From The Wall Street Journal ● Oct. 30, 2026

He’d made it a point to tell us that dating outside of his race didn’t mean he was rejecting Black women.

From "Split the Sky" by Marie Arnold

PLS Group approved a $1.3 billion project to double production capacity at its Pilgangoora mine in Western Australia.

From The Wall Street Journal ● Oct. 30, 2026

"A friend of mine said, 'Get a suntan, make some money, go home.'"

From BBC ● Oct. 29, 2026

“If a tenant of mine wanted a panel, I would deny it,” one landlord wrote in the comments of a recent L.A.

From Los Angeles Times ● Oct. 27, 2026

This is their money, not mine, so it is their business if they give it away.

From MarketWatch ● Oct. 26, 2026

Willem fixed his sober, deep-set eyes on mine.

From "The Hiding Place" by Corrie ten Boom

“I don’t know how to wrap my head around it,” Anthropic co-founder Jack Clark recently wrote.

From The Wall Street Journal ● Oct. 31, 2026

"It's this idea that… I'm literally going to wear my patriotism on my sleeve."

From BBC ● Oct. 31, 2026

“I think that my voice can help, my action can help in relation to principles that are dear to my heart,” she said.

From The Wall Street Journal ● Oct. 31, 2026

The statue was meant to capture the iconic moment in 2009 when Wade jumped on a scorers’ table and declared, “This is my house!”

From Los Angeles Times ● Oct. 30, 2026

Trembling, I imagine my body like the blanket.

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

"We cannot just plod on to 2030 without a course correction; nature is critical to all life on Earth: to our economies, to our wellbeing," she added.

From BBC ● Oct. 31, 2026

“It’s come to our attention that some people think Goldfish crackers are just for kids,” said a 2024 Goldfish ad online.

From The Wall Street Journal ● Oct. 31, 2026

Then Mr. Blackwood interjects: “We’re not even sure about our students’ politics.

From The Wall Street Journal ● Oct. 30, 2026

“Regarding our technology roadmap, our autonomy platform is progressing rapidly,” Scaringe said in a statement.

From Los Angeles Times ● Oct. 30, 2026

“Perhaps you will be our fairy godmother,” she says.

From "At Last She Stood" by Erin Entrada Kelly

Investors need to actively protect ours, Jacob Bornstein and David Tenen write.

From Barron's ● Oct. 29, 2026

"It ends up in facilities like ours where it will be touched by people and that's inherently unsafe."

From BBC ● Oct. 29, 2026

Global refiners are making less distillate, so Europe is buying ours.

From MarketWatch ● Oct. 28, 2026

We were in a fierce seller’s market and this was typical: Friends of ours in Boston had been making wild highball offers for years, and had always been outbid.

From Slate ● Oct. 28, 2026

I still trusted in our road through time, and in its mysterious way of joining up all the different universes within this crazy world of ours.

From "Flying Through Water" by Mamle Wolo

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