i
the imaginary number .
Jump To:
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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.
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-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
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is
plural
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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
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mine,
possessive
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our,
possessive
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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
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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
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Island or Isle
-i-
4
British
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
suffix
i
7
British
symbol
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:
“Dr. Williams has always maintained that he was acting i self-defense,” Libman wrote in an email.
From Los Angeles Times ● Oct. 9, 2026
Quarterly earnings from Fast Retailing and Seven & i Holdings, due later on Thursday, are also in focus.
From The Wall Street Journal ● Oct. 8, 2026
“There is a certain pride in being a Californian, certainly not held by everybody ... but i would think that the mainstream would be defending the state.”
From Los Angeles Times ● Oct. 6, 2026
The i writes that the project "would link new radar, command systems and interceptor missiles" into a single network.
From BBC ● Oct. 6, 2026
The night before September i, when my brothers began school, Mother bathed us all in a wide tin tub the way she did once every week.
From "Tasting the Sky" by Ibtisam Barakat
“I thought I was going to lose my mind waiting for him to come back—I was so worried,” she said.
From The Wall Street Journal ● Oct. 11, 2026
"I would never have thought that I would end up behaving in the way that I had, and I can't imagine being that way now."
From BBC ● Oct. 10, 2026
Meanwhile Kimberley, who had experienced a "full" manic episode that resulted in a break from reality, was diagnosed with bipolar I.
From BBC ● Oct. 10, 2026
"When I think about how my life was before my diagnosis, it was so chaotic," Kimberley said.
From BBC ● Oct. 10, 2026
I want to tell Father, “Stop, slow,” but I can feel how his spirit, his mind are trying to rush pass sadness.
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
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
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
The old ‘Minor Declensions’ had begun to pass over into the vocalic, especially into the i- and a-, declensions in the oldest OHG.
From A Middle High German Primer Third Edition by Joseph Wright
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
Properties i. and ii. say that line integrals are linear, which is true of single-variable integrals as well.
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
A statement or question of a speaker or writer may be quoted directly, i. e., without change in the form of the language.
From A Greek Primer For Beginners in New Testament Greek by Wallace Stearns
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
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
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
But for the 11 months we were married, I experienced the glory of being a we instead of an I. Suddenly I was part of a giant club, the Partnered People.
From Los Angeles Times ● May 22, 2026
Astronauts Virgil I. Grissom, Edward H. White II, and Roger B. Chaffee were sitting in the command module as the command center counted them down toward a launch.
From "Reaching for the Moon" by Katherine Johnson
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
Verbs in -i add -ua to the final syllable.
From The Mafulu Mountain People of British New Guinea by Robert Wood Williamson
Oncus -i: a welt: applied to welt-like ridges on caterpillars.
From Explanation of Terms Used in Entomology by John. B. Smith
If not a few Bantu languages, the verb used in a negative sense changes its terminal -a to -i.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" by Various
Judges were unmoved that Luitpold’s forebears had brewed in the region since 1260, written the purity law and invented Oktoberfest for his great-great-grandfather King Ludwig I’s 1810 wedding.
From The Wall Street Journal ● Sep. 7, 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
“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
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
If you add ly, you end up with double I’s: awfully, carefully, usefully, wonderfully, etc.
From "Woe Is I" by Patricia T. O'Conner
In September, Langley's country smash Choosin' Texas overtook Mariah Carey's All I Want for Christmas Is You to become the longest-running number one single in US chart history.
From BBC ● Oct. 10, 2026
Is Premier League possession football on the way out?
From BBC ● Oct. 9, 2026
Is there anything more worrisome about today’s tech titans than the fact that they present as abundance-minded optimists but in actuality are gluttonous, scorched-earth pessimists?
From Los Angeles Times ● Oct. 9, 2026
“Of course, it goes back and forth in my head: Is it the right decision?”
From The Wall Street Journal ● Oct. 8, 2026
“What is it, Lizzie? Is there something about February the thirteenth that’s especially important to you?”
From "An Elephant in the Garden" by Michael Morpurgo
Now, there are still some t’s to cross and i’s to dot.
From Slate ● Oct. 3, 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
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
I’ve won the writing prize twice, and I would have this week, too, but I decided to leave some i’s undotted.
From "In the Time of the Butterflies" by Julia Alvarez
Most home camera systems connect to your Wi-Fi, and your protection is only as strong as the weakest link.
From The Wall Street Journal ● Oct. 11, 2026
Oleshky’s hospital remains open, but is short of medicine and other supplies.
From The Wall Street Journal ● Oct. 11, 2026
The road is impassable for cars, but can still be traversed—at great risk—by foot or bicycle.
From The Wall Street Journal ● Oct. 11, 2026
His call for screening guidance to be urgently updated is backed by the Royal College of Psychiatrists and charity Bipolar UK.
From BBC ● Oct. 10, 2026
The obituary states that she has no immediate survivors, but of course, that is not true.
From "At Last She Stood" by Erin Entrada Kelly
“We had to go into these dangerous places and look for food, because we were hungry.”
From The Wall Street Journal ● Oct. 11, 2026
“We were constantly looking around us, watching where we stepped,” she said.
From The Wall Street Journal ● Oct. 11, 2026
Will we ever pay back our student loans?
From BBC ● Oct. 10, 2026
“It’s kind of week to week in terms of how he feels, but I would say it’s more likely that we do not start his clock next week,” McVay said after practice.
From Los Angeles Times ● Oct. 10, 2026
The south side, where we live, is the Black part.
From "Split the Sky" by Marie Arnold
"I was once in a room of accountants, and one of them stood up and said, 'My clients come to me for the personal touch, the human process'," he remembers.
From BBC ● Oct. 10, 2026
Said Misiorowski: “The dude’s insane. I’m just hoping that these guys can do their job and handle business with him and let me do my thing and try to get that side taken care of.”
From Los Angeles Times ● Oct. 10, 2026
"The findings weren't surprising to me," Qi said.
From Science Daily ● Oct. 10, 2026
“Alan,” he said, “You have to talk to me for this book. Rod Serling is my guy. Rod Serling is a huge influence on me.”
From Salon ● Oct. 10, 2026
The other man sets me down on the dirt like I don’t matter at all.
From "Will’s Race for Home" by Jewell Parker Rhodes
“We’re the toddlers in the room and they’re patting us on the head,” Mashburn said.
From The Wall Street Journal ● Oct. 10, 2026
Chayka thinks algorithms have made us lazy, and "prevent us from going deeper" in our cultural taste.
From BBC ● Oct. 10, 2026
“That’s when you can really talk about, ‘OK, he’s going to play football for us and things of that nature,’” McVay said.
From Los Angeles Times ● Oct. 10, 2026
"Although it is happening in the Middle East, it affects us here now," she said.
From Barron's ● Oct. 10, 2026
When we’re done with the meal, Arlo and I cut into the triple-chocolate cake that Aunt J picked up for us after work.
From "Split the Sky" by Marie Arnold
In one such victory earlier this week, Australia's highest court blocked the expansion of a coal mine in New South Wales, citing its climate impact.
From Barron's ● Oct. 9, 2026
Joe Port and Joe Wiseman, the co-creators and co-showrunners of CBS’ new vampire comedy, say they wanted to mine the idea of eternal love: “This is totally ‘Twilight’ 500 years later.”
From Los Angeles Times ● Oct. 8, 2026
But Ord Minnett says investors may look through the quarter and focus on more positive news flow, such as its four-year outlook and completed sale of the Edna May mine.
From The Wall Street Journal ● Oct. 8, 2026
"I know I'm biased because she was mine, but she was the best human I've ever met," says Aaron John Huxter of his daughter Olivia-Grace.
From BBC ● Oct. 8, 2026
He stroked my cheek, his dark eyes boring into mine.
From "The Red Car to Hollywood" by Jennie Liu
“I thought I was going to lose my mind waiting for him to come back—I was so worried,” she said.
From The Wall Street Journal ● Oct. 11, 2026
“I worry about my parents constantly now,” Zakhavko said.
From The Wall Street Journal ● Oct. 11, 2026
"My mood had always been up and down, and my emotional regulation was never very good," Kimberley said.
From BBC ● Oct. 10, 2026
“It makes my job a lot easier,” Looney said of the Lakers’ rotation of wings.
From Los Angeles Times ● Oct. 10, 2026
The Bible teaches me to respect my father.
From "Will’s Race for Home" by Jewell Parker Rhodes
“By remaining behind civilians, it makes it easier for them to shell our side of the river. They don’t even feed them—we send food ourselves, and risk losing drones.”
From The Wall Street Journal ● Oct. 11, 2026
This stream of charged particles can get captured by the Earth's magnetic field and directed into our atmosphere, especially towards polar regions.
From BBC ● Oct. 10, 2026
In the local picture here, the Brewers have to ask what every manager or coach does: Did we put our players in the best position to win?
From Los Angeles Times ● Oct. 10, 2026
Chayka thinks algorithms have made us lazy, and "prevent us from going deeper" in our cultural taste.
From BBC ● Oct. 10, 2026
I look about our small camp—Belle and Midnight tied side by side; Father and Caesar, the fire between them, sitting across from each other.
From "Will’s Race for Home" by Jewell Parker Rhodes
As crowded as the deck was, ours was missing the one bit of fishing kit it needed most: the optional Minn Kota trolling motor.
From The Wall Street Journal ● Oct. 10, 2026
“And because nearly 2,000 people are still inside who have not died, and whose lives are still ours to fight for.”
From Los Angeles Times ● Oct. 8, 2026
"Just imagine: having to stop right in the middle of the season like that. It's unbearable for a company like ours," he said.
From Barron's ● Oct. 4, 2026
But its good witchery also contextualizes the quest for sanity in mad times like ours with comforting observations about occultism’s role during eras of social upheaval.
From Salon ● Oct. 2, 2026
It kept their spirits up, and ours too, come to that, because it was so heartening to see the children enjoying themselves.
From "An Elephant in the Garden" by Michael Morpurgo
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.
