\ ˈin How to pronounce in (audio) , ən, ᵊn \

Definition of in

 (Entry 1 of 11)

1a used as a function word to indicate inclusion, location, or position within limitsin the lakewounded in the legin the summer
b : into sense 1 went in the house
2 used as a function word to indicate means, medium, or instrumentalitywritten in pencilbound in leather
3a used as a function word to indicate limitation, qualification, or circumstancealike in some respectsleft in a hurry
b : into sense 4a broke in pieces
4 used as a function word to indicate purposesaid in reply
5 used as a function word to indicate the larger member of a ratioone in six is eligible
\ ˈin How to pronounce in (audio) \

Definition of in (Entry 2 of 11)

1a(1) : to or toward the inside especially of a house or other building come in
(2) : to or toward some destination or particular place flew in on the first plane
(3) : at close quarters : near play close in
b : so as to incorporate mix in the flour often used in combinationbuilt-in bookcases
c : to or at an appropriate place fit a piece in
2a : within a particular place especially : within the customary place of residence or business the doctor is in
b : in the position of participant, insider, or officeholder often used with onin on the joke
c(1) : on good terms
(2) : in a specified relation in bad with the boss
(3) : in a position of assured or definitive success
d : in vogue or season
e of an oil well : in production
f : in one's presence, possession, or control after the crops are in
g : from a condition of indistinguishability to one of clarity fade in
in for
: certain to experience in for a rude awakening
\ ˈin How to pronounce in (audio) \

Definition of in (Entry 3 of 11)

1a : that is located inside or within the in part
b : that is in position, operation, or power the in party
2 : that is directed or bound inward : incoming the in train
3a : extremely fashionable the in thing to do
b : keenly aware of and responsive to what is new and fashionable the in crowd


\ ˈin How to pronounce in (audio) \

Definition of in (Entry 4 of 11)

1 : one who is in office or power or on the inside a matter of ins versus outs
2 : influence, pull enjoyed some sort of in with the commandant— Henriette Roosenburg

Definition of in (Entry 5 of 11)

1 inch
2 inlet

Definition of In (Entry 6 of 11)


Definition of IN (Entry 7 of 11)

variants: or il- or im- or ir-

Definition of in- (Entry 8 of 11)

: not : non-, un- usually il- before lillogical , im- before b, m, or pimbalanceimmoralimpractical , ir- before rirreducible , and in- before other soundsinconclusive
variants: or il- or im- or ir-

Definition of in- (Entry 9 of 11)

1 : in : within : into : toward : on usually il- before lilluviation , im- before b, m, or pimmingle , ir- before rirradiance , and in- before other soundsinfiltrate
2 : en- entry 1 imbrute imperil inspirit

Definition of -in (Entry 10 of 11)

1a : neutral chemical compound insulin
b : enzyme pancreatin
c : antibiotic penicillin
2 : -ine entry 2 sense 1a epinephrin
3 : pharmaceutical product niacin

Definition of -in (Entry 11 of 11)

: organized public protest by means of or in favor of : demonstration teach-in love-in

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Synonyms & Antonyms for in

Synonyms: Preposition

Synonyms: Adverb

Synonyms: Adjective

Synonyms: Noun

Antonyms: Adjective

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Examples of in in a Sentence

Preposition Don't come in here with those muddy feet! drawn on the wall in crayon Adverb She went in and closed the door. I lost my keys and now I can't get in. The burglars broke in through the kitchen window. The pool is deep. Be careful not to fall in. The boss called us in for a conference. The fog was closing in fast. Get your orders in early! Is the train in yet? Adjective the in thing to do the in place to go It's what the in crowd is wearing this season. Noun When you're trying to get started in show business, it helps to have an in. They must have an in with the boss.
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Recent Examples on the Web: Preposition The same pattern is apparent even in congressional races. The Economist, "Following the money Reports that the president’s campaign faces a crisis are exaggerated," 19 Sep. 2020 Other women involved in the new video include actress Rosario Dawson, designer and Vogue September cover star Aurora James, and comedian Mindy Kaling. Brooke Bobb, Vogue, "Tanya Taylor, Hillary Clinton, and More Show Us a Few Things That Take Longer Than Registering to Vote," 17 Sep. 2020 The project is in a county island and would have required rezoning from county officials. Joshua Bowling, The Arizona Republic, "Controversial waste transfer station won't go to north Peoria after mayor, thousands of residents push back," 17 Sep. 2020 By contrast, global CO2 emissions were about 33 metric gigatons in 2019. David Iaconangelo, Scientific American, "Researchers Urge Federal Moonshot for Clean Energy," 17 Sep. 2020 The summer weather seems to be breaking and fall is in the air. The Washington Post, "Adrian Higgins on planting trees ahead of a cicada year and all things gardening," 17 Sep. 2020 Julie and Sunset Curve will certainly be thinking about where Caleb if the show returns for another season, especially now that's in Nick's body. Tamara Fuentes, Seventeen, "Breaking Down the "Julie and the Phantoms" Season 1 Ending," 17 Sep. 2020 Potentially heavy rain is in the forecast Thursday night, which could firefighters. oregonlive, "Clackamas County wildfire: ‘Things are looking good’," 17 Sep. 2020 The cryptocurrency exchanges targeted in the attack were Poloniex, Binance and Gemini, according to court documents. Dylan Tokar, WSJ, "U.S. Charges Two Russian Nationals Who Allegedly Stole Cryptocurrencies," 16 Sep. 2020 Recent Examples on the Web: Adverb And the San Francisco 49ers edge rusher outranks his big bro on NFL Network's top 100 players for 2020, coming in at No. 17. Steve Gardner, USA TODAY, "Patrick Mahomes headlines pro sports' top athletes age 25 and under," 16 Sep. 2020 The eleven-man boy band led physical sales and Twitter mentions, while coming in at No. 2 for look-ups. Billboard Japan, Billboard, "JO1 Soars to No. 1 as Haruma Miura’s Posthumous Single Rises to No. 2 on Japan Hot 100," 14 Sep. 2020 Pence also spoke about the coronavirus pandemic, and lauded Trump's travel ban on those coming in from China. Laura Schulte, Milwaukee Journal Sentinel, "Vice President Mike Pence returns to the Badger State with visit to Janesville," 14 Sep. 2020 Once word spread of Oscar Cripps’s passing on the morning of Sept. 12, tributes began coming in for the long-time Stratford football coach. Elliott Lapin, Houston Chronicle, "Stratford community pays tribute to state title-winning coach Oscar Cripps," 14 Sep. 2020 Zamansky tells me the preorders have already been coming in from lots of Minnesotans, go figure. Sharyn Jackson, Star Tribune, "5 best things our food writers ate in the Twin Cities this week," 11 Sep. 2020 Whereas roses had been coming in on 10 flights a day, there was now one flight a week from Europe. Washington Post, "Six 9/11 victims had birthdays that day. For all, a single white rose.," 11 Sep. 2020 This creates a flame that enters the cylinder through a series of small holes and heats the rest of the fuel and air in there. Peter Valdes-dapena, CNN, "Maserati unveils its first supercar in 15 years," 9 Sep. 2020 The bee proceeds to sting the patient's skin, and rather than remove the bee's stinger immediately, the practitioner may leave it in there for several seconds. Isadora Baum, Good Housekeeping, "What Is Bee Sting Therapy? Everything Netflix's '(Un)Well' Didn't Say About Bee Venom," 5 Sep. 2020 Recent Examples on the Web: Adjective To keep Huawei’s edge blunt, suppliers keen to produce chips designed by its in-house semiconductor unit, HiSilicon, are unlikely to be issued such dispensation. The Economist, "Creative destruction How America’s war on Huawei may boost Chinese technology," 12 Sep. 2020 One of the most challenging hurdles may also be financial: Not even Musk has ventured to guess an all-in cost estimate. Jackie Wattles, CNN, "Colonizing Mars could be dangerous and ridiculously expensive. Elon Musk wants to do it anyway," 8 Sep. 2020 Castro's two-out drive to the gap off Ty Buttrey (1-2) made for a memorable debut with the Padres, who acquired the veteran catcher from Los Angeles on Sunday as part of their all-in trade bonanza. Greg Beacham, Star Tribune, "Castro gets big hit after trade, Padres rout Angels 11-4," 3 Sep. 2020 Today, the Greenbrier Hotel honors both Dorothy Draper and Carleton Varney with its in-house restaurant, Draper’s, and the Café Carleton. Mary Elizabeth Andriotis, House Beautiful, "How the Legacies of Iconic Interior Designers Are Being Preserved—and Adapted—Over Time," 31 Aug. 2020 The game was removed after Epic Games enabled a function that let users make in-game purchases for virtual weapons or other items directly from Epic, rather than through Apple's payment system. Stephen Gandel, CBS News, "Apple App Store will remain Fortnite-free, for now," 26 Aug. 2020 On Thursday morning, Epic announced new lower pricing for its in-game V-Bucks currency. Michael Simon, PCWorld, "Fortnite pulled from the Play Store as Epic accuses Google of blocking Android deals," 14 Aug. 2020 Trump said the authority was replacing many of its in-house technology workers with contractors who rely heavily on foreign workers under the H1-B visa program for highly skilled workers. Author: Zeke Miller, Anchorage Daily News, "Trump fires chair of Tennessee Valley Authority, cites hiring of foreign workers," 3 Aug. 2020 The next step in his rehabilitation, Anderson said, is evaluating his in-game awareness, which will come from intrasquad games that begin Wednesday. Evan Petzold, Detroit Free Press, "Detroit Tigers coach evaluates Casey Mize, Matt Manning: Here's what he said," 7 July 2020 Recent Examples on the Web: Noun In some places, mail-in voting has previously been too niche. Washington Post, "How to track your ballot like a UPS package," 18 Sep. 2020 The primary suite has two full bathrooms, each with a toilet, sink, shower and walk-in. Mary Grace Granados, Dallas News, "See an updated 1970s Dallas home with a loft, a two-bedroom guest house, a greenhouse and a workshop," 18 Sep. 2020 Experts warn that the surge of mail-in voting could mean election winners will not be known for days or weeks. Emily Larsen, Washington Examiner, "USPS sends postcards encouraging voters to 'make a plan' for mail-in ballots," 11 Sep. 2020 Counties have also encouraged mail-in voting, which is expected to reach record highs, to prevent long lines or confusion on Election Day. Kelli Smith, chicagotribune.com, "Chicago-area counties boost election judges’ pay, ramp up recruitment efforts as nation faces ‘critical shortage’ of election workers," 1 Sep. 2020 Detailed information on absentee and mail-in voting can be found here or on GoVoteMissouri.com. Hannah Jeon, Good Housekeeping, "How to Vote in Every State (and the District of Columbia) in the 2020 Presidential Election," 24 Aug. 2020 And the president who has just spent the past few weeks excoriating mail-in voting has less than a week to cast it. Hannah Morse, USA TODAY, "President Trump requests mail-in ballot for upcoming Florida primary, despite rhetoric," 14 Aug. 2020 But now, according to a recent PEW Research Center poll, more than 70 percent of Americans believe mail-in voting should be accessible to all. Nina Strochlic, National Geographic, "How mail-in voting began on Civil War battlefields," 14 Aug. 2020 Applications for mail-in voting must be received by election officials by Oct. 22. Elizabeth Depompei, The Indianapolis Star, "Here's everything you need to know to vote by mail in Indiana," 11 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'in.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of in


before the 12th century, in the meaning defined at sense 1a


before the 12th century, in the meaning defined at sense 1a(1)


1599, in the meaning defined at sense 1a


1764, in the meaning defined at sense 1

History and Etymology for in


Middle English, from Old English; akin to Old High German in in, Latin in, Greek en

Prefix (1)

Middle English, from Anglo-French, from Latin; akin to Old English un-

Prefix (2)

Middle English, from Anglo-French, from Latin, from in in, into

Noun suffix

French -ine, from Latin -īna, feminine of -īnus of or belonging to — more at -en

Noun combining form


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Time Traveler for in

Time Traveler

The first known use of in was before the 12th century

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Statistics for in

Last Updated

20 Sep 2020

Cite this Entry

“In.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in. Accessed 27 Sep. 2020.

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More Definitions for in

How to pronounce -in (audio)

English Language Learners Definition of in

 (Entry 1 of 4)

used to indicate location or position within something
: to the inside of (a room, container, etc.)
used to indicate that someone or something belongs to or is included as part of something
How to pronounce -in (audio)

English Language Learners Definition of in (Entry 2 of 4)

: to or toward the inside of something (such as a building)
: to or toward a place
: at the place where someone or something arrives after traveling
How to pronounce -in (audio)

English Language Learners Definition of in (Entry 3 of 4)

: popular or fashionable
: aware of and strongly influenced by what is new and fashionable


How to pronounce -in (audio)

English Language Learners Definition of in (Entry 4 of 4)

chiefly US, informal : a way of becoming involved in something or of influencing someone
\ ˈin How to pronounce in (audio) , ən \

Kids Definition of in

 (Entry 1 of 7)

1 : located or positioned within The house is in the country.
2 : into sense 1 We ran in the house.
3 : during It's warmer in the summer.
4 : with sense 2 I wrote in pencil.
5 used to show a state or conditionYou're in luck!We're in trouble.
6 used to show manner or purposeI'm in a hurry.He laughed in reply.
7 : into sense 2 It broke in pieces.
\ ˈin How to pronounce in (audio) \

Kids Definition of in (Entry 2 of 7)

1 : to or toward the inside I went in and closed the door.
2 : to or toward some particular place We flew in yesterday.
3 : near entry 1 sense 1 Play close in.
4 : into the midst of something Mix in the flour.
5 : to or at its proper place Can you fit this piece in?
6 : on the inner side : within Everyone is in.
7 : present and available for use All the votes are in.
in for
: sure to experience He was in for a surprise.
\ ˈin How to pronounce in (audio) \

Kids Definition of in (Entry 3 of 7)

1 : being inside or within the in part
2 : headed or bound inward the in train

Kids Definition of in.


Kids Definition of IN



variants: or il- or im- or ir-

Kids Definition of in-

 (Entry 1 of 7)

: not : non-, un- usually il- before lillogical , im- before b, m, or pimmoralimpractical , ir- before rirreconcilable and in- before other soundsincomplete


variants: or il- or im- or ir-

Kids Definition of in- (Entry 2 of 7)

1 : in : within : into : toward : on usually il- before lilluminate , im- before b, m, or pimport , ir- before rirradiate , and in- before other soundsinfect
2 : en- sense 2 imperil

Medical Definition of in

 (Entry 1 of 2)


Medical Definition of In (Entry 2 of 2)


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Legal Definition of in

: under the law of : based on brought an action in negligenceNational Law Journal

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