i
the imaginary number .
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i
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I
Inounthe ninth letter of the English alphabet, a vowel.
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i-
i-variant of y-.
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i.
i.abbreviationimperator.
-
-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.
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I.
I.abbreviationIndependent.
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-i
-isuffixof or relating to a region or people, esp of the Middle East
i
1 AmericanMathematics.
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Also called imaginary unit. the imaginary number .
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a unit vector on the x -axis of a coordinate system.
I
2
American
[ahy]
/ aɪ /
Or
i
noun
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I's,
plural
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Is,
plural
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i's,
plural
-
is
plural
-
the ninth letter of the English alphabet, a vowel.
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any spoken sound represented by the letter I or i, as in big, nice, or ski.
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something having the shape of an I.
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a written or printed representation of the letter I or i.
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a device, as a printer's type, for reproducing the letter I or i.
I
3
American
[ahy]
/ aɪ /
pronoun
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we,
plural nominative
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me,
objective
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us,
objective
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my,
possessive
-
mine,
possessive
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our,
possessive
-
ours
possessive
noun
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I's
plural
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(used to denote the narrator of a literary work written in the first person singular.)
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Metaphysics. the ego.
I
4
American
abbreviation
I
5
American
Symbol.
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the ninth in order or in a series.
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(sometimes lowercase) the Roman numeral for 1.
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Chemistry. iodine.
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Biochemistry. isoleucine.
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Electricity. current.
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Logic. particular affirmative.
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(italics) isotopic spin.
i-
6
American
i.
7
American
abbreviation
-
imperator.
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incisor.
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interest.
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intransitive.
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island.
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isle; isles.
-i-
8
American
I.
9
American
abbreviation
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Independent.
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Island; Islands.
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Isle; Isles.
I
1
British
/ aɪ /
pronoun
I
2
British
symbol
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chem iodine
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physics current
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physics isospin
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logic a particular affirmative categorial statement, such as some men are married, often symbolized as SiP Compare A E O 1
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one See Roman numerals
abbreviation
I.
3
British
abbreviation
-
International
-
Island or Isle
-i
4
British
suffix
i
5
British
/ aɪ /
noun
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the ninth letter and third vowel of the modern English alphabet
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any of several speech sounds represented by this letter, in English as in bite or hit
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something shaped like an I
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( in combination )
an I-beam
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to pay meticulous attention to detail
i
6
British
symbol
-i-
7
British
i
Scientific
/ ī /
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 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
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
I text Libby just as my cell phone is powering itself down—“stall, do whatever u need 2 do 2 stall, i got a callback”—but who knows if it goes through.
From "Better Nate Than Ever" by Tim Federle
My colleagues and I recently tried to change that in the domain of astrobiology.
From Science Daily ● Sep. 9, 2026
Among other posts on X from General Kainerugaba on Thursday was one that read: "I consider myself the most handsome, most daring and glorious Commander who ever lived."
From BBC ● Sep. 9, 2026
“After he made the shift, I haven’t seen him much,” says Silver.
From The Wall Street Journal ● Sep. 9, 2026
“I’ll just be sad. I don’t want to think about that.”
From Los Angeles Times ● Sep. 9, 2026
“You’re important to me. Pa’s important. I need you both safe, to care for each other.”
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
From this period the cause of popery proceeded-183--vol i- triumphantly: a reign of terror commenced; and the government gained fresh strength and courage by every exertion of the tyrannic power which it had assumed.
From Memoirs of the Court of Queen Elizabeth by Lucy Aikin
Cranmer-128--vol i- resisted for some time, but was at length won to compliance by the tears and entreaties of Edward.
From Memoirs of the Court of Queen Elizabeth by Lucy Aikin
By a change he had every thing to lose, and nothing to-129--vol i- gain.
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
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
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
The violin in Baerwald’s hands was the one his German-Jewish grandfather played as a Japanese prisoner of war in the Bandō camp at Tokushima during World War I. “It’s a very serviceable violin,” Baerwald notes.
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
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
“So am I. Why don’t you go out and see what you can find for us.”
From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri
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
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
I E -i formed abstracts and nouns of agency; I E ar go; Min ari, way, track, trail.
From The Dakotan Languages, and Their Relations to Other Languages by A. W. (Andrew Woods) Williamson
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
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
“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
Was it all the I’s that did it or the mental picture that streaked cometlike across the unfocused lens of her mind?
From "The Great Gilly Hopkins" by Katherine Paterson
Is there any work in his already extensive oeuvre that he would hold above the others?
From Los Angeles Times ● Sep. 9, 2026
Is there anything else on your bucket list?
From BBC ● Sep. 9, 2026
But a filmmaker friend asked her: Is making movies about disability now her “thing”? It is a question Heder had already considered.
From Los Angeles Times ● Sep. 9, 2026
In the tradition of songwriters like Matthew Sweet, Neil Finn and Andy Partridge of XTC, Nate Amos of This Is Lorelei is a master of musical structure who writes with mathematical precision.
From The Wall Street Journal ● Sep. 8, 2026
Is this what it means to be grown?
From "Will’s Race for Home" by Jewell Parker Rhodes
"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
I care that you dot your i’s, you cross your t’s, that if you say you’re going to do something, you do it.
From The Wall Street Journal ● Mar. 12, 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
The i's Anna Bonet added Intermezzo is "mature and profound and feels like a culmination of everything she has done before".
From BBC ● Sep. 23, 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
Because of those similarities, fission yeast is sometimes called a "mini-human" and is widely used to study basic cellular processes.
From Science Daily ● Sep. 9, 2026
In other words, they asked whether the effect varies depending on the direction in which it is measured.
From Science Daily ● Sep. 9, 2026
That approach makes it possible to examine huge volumes of space and reconstruct a three-dimensional view of how matter is distributed across the Universe.
From Science Daily ● Sep. 9, 2026
Metformin is best known for helping control blood sugar, but scientists have also been studying whether it can influence biological pathways associated with aging.
From Science Daily ● Sep. 9, 2026
Lucban is a good place for make-believe, because it is rich with legends.
From "At Last She Stood" by Erin Entrada Kelly
"More than 80 percent of insect species occur in the tropics, yet these are the very places where we have some of the biggest gaps in our knowledge," Dr. Chowdhury said.
From Science Daily ● Sep. 9, 2026
"Yes, we do everything to support our national security, but it can't come at the expense of social security."
From BBC ● Sep. 9, 2026
“It almost feels like these companies are taking advantage of us because we are doing this for our livelihood.”
From The Wall Street Journal ● Sep. 9, 2026
"By bringing together local knowledge, citizen science, social media, scientific monitoring and regional expertise, we can build a much clearer picture of where species occur and where conservation effort is most urgently needed."
From Science Daily ● Sep. 9, 2026
“Did I tell you how brave, how strong your pa was when we left Louisiana?”
From "Will’s Race for Home" by Jewell Parker Rhodes
"I've also just had a knee replacement, so this is helping me along," Toni added.
From BBC ● Sep. 9, 2026
Execs also told me that attention will next shift to Australia, where winter is turning into spring.
From The Wall Street Journal ● Sep. 9, 2026
“They told me they found another job, that the work was too hard, that there wasn’t enough pay.”
From Los Angeles Times ● Sep. 9, 2026
But most of it was a decision I had made long before anyone could get to me.
From Salon ● Sep. 9, 2026
“No, no. Read this. Tell me what it says. Exactly.”
From "Will’s Race for Home" by Jewell Parker Rhodes
"This tells us prehistoric people placed real importance on the landscape itself. It wasn't just about convenience -- the location the stones came from likely held meaning for them."
From Science Daily ● Sep. 9, 2026
“It almost feels like these companies are taking advantage of us because we are doing this for our livelihood.”
From The Wall Street Journal ● Sep. 9, 2026
A gesture that said plainly, in a stadium and not only in a press release: You are one of us, and you always were.
From Salon ● Sep. 9, 2026
She now does for us what the library’s spirits did for her, teaching anyone who’s interested how to see.
From Los Angeles Times ● Sep. 9, 2026
He just didn’t have the right tools to communicate with us.
From "Split the Sky" by Marie Arnold
Every year I decide again that the arrangement is worth it, that my belonging is mine to grant and not the NFL’s to approve.
From Salon ● Sep. 9, 2026
Sheer Health’s team let me know that it helps with claims like mine frequently since physical- and occupational-therapy claims are the most commonly denied, thanks to timed treatment units and strict medical-necessity guidelines.
From MarketWatch ● Sep. 8, 2026
Copper prices surged to a fresh record on the London Metal Exchange, as mounting concerns over mine supply and the prospect of potential U.S. tariffs sent buyers scrambling for the metal.
From The Wall Street Journal ● Sep. 7, 2026
"It's changed mine and my children's lives... I've been able to save, I've bought my own car, and it's given me so much more confidence," she said.
From BBC ● Sep. 6, 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
"It has changed my life dramatically, I've built up a really beautiful friendship group," she said.
From BBC ● Sep. 9, 2026
“Whenever people say, ‘Oh, well, the Treasury secretary is taking a risk,’ well, it’s my dream.
From MarketWatch ● Sep. 9, 2026
Every year I decide again that the arrangement is worth it, that my belonging is mine to grant and not the NFL’s to approve.
From Salon ● Sep. 9, 2026
While signing the decree, the president said he had made good on his campaign promise: "A man's word is his honour, and I have honour, that's why I keep my word."
From BBC ● Sep. 9, 2026
It’s only a matter of time before the notes fill my mind and everything else falls away.
From "Split the Sky" by Marie Arnold
"We're incredibly grateful to the researchers for helping us uncover this new chapter in the stones' story and deepen our understanding of the people who shaped this landscape thousands of years ago," Mr. Scully said.
From Science Daily ● Sep. 9, 2026
In response, Burnham insisted: "This chancellor of all chancellors will be willing to provide that funding to our armed forces."
From BBC ● Sep. 9, 2026
“It almost feels like these companies are taking advantage of us because we are doing this for our livelihood.”
From The Wall Street Journal ● Sep. 9, 2026
Like nearly everyone I grew up around in this corner of Pennsylvania, Sundays in our house were a congregation in green, and I was the lone holdout in the pew, quietly pulling for New England.
From Salon ● Sep. 9, 2026
Most of our money has been spent outfitting the trip.
From "Will’s Race for Home" by Jewell Parker Rhodes
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
But if we don’t sustain their vitality, how will they sustain ours?
From The Wall Street Journal ● Aug. 21, 2026
"Only studies like ours offer an overview of these traditions which bear witness to genuine know-how and diverse traditions."
From Science Daily ● Aug. 21, 2026
“Living in a small town like ours, it’s hard to imagine that many people. Even Denver’s population is only a fraction of that.”
From "Linked" by Gordon Korman
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
