\ 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 limits in 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 instrumentality written in pencilbound in leather
3a used as a function word to indicate limitation, qualification, or circumstance alike in some respectsleft in a hurry
b : into sense 4a broke in pieces
4 used as a function word to indicate purpose said in reply
5 used as a function word to indicate the larger member of a ratio one in six is eligible

in

adverb
\ 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 combination built-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 on in 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

in

noun
\ 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

In

symbol

Definition of In (Entry 6 of 11)

indium

Definition of IN (Entry 7 of 11)

Indiana
variants: or il- or im- or ir-

Definition of in- (Entry 8 of 11)

: not : non-, un- usually il- before l illogical , im- before b, m, or p imbalanceimmoralimpractical , ir- before r irreducible , and in- before other sounds inconclusive
variants: or il- or im- or ir-

Definition of in- (Entry 9 of 11)

1 : in : within : into : toward : on usually il- before l illuviation , im- before b, m, or p immingle , ir- before r irradiance , and in- before other sounds infiltrate
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 Ness of Brodgar is part of the Heart of Neolithic Orkney, which was designated as a Unesco World Heritage site in 1999. Livia Gershon, Smithsonian Magazine, "5,000-Year-Old Fingerprint Found on Pottery Shard Unearthed in Scotland," 28 Apr. 2021 The collectors card skyrocketed from $1.85 million to $5.2 million since last summer, illuminating James' value in the hobby collectors world. Scott Gleeson, USA TODAY, "LeBron James rookie card sold for $5.2 million — tying all-time record for any sports card," 27 Apr. 2021 His strength, love and kindness are the greatest gifts in the world. Jen Juneau, PEOPLE.com, "Bindi Irwin Shares Cute Video of Her Baby Girl Hanging with Tortoises: 'Little Wildlife Warrior'," 27 Apr. 2021 In this heartwarming, funny and emotional true story, Kevin Hart stars as a widower taking on one of the toughest jobs in the world: fatherhood. Jacob Siegal, BGR, "Netflix reveals 32 original movies coming this summer – here’s the full list," 27 Apr. 2021 Oak Pointe Church said in its statement that some of Grossman's earlier remarks troubled them. Niraj Warikoo, Detroit Free Press, "Police chief training in Novi church with 'Killology' speaker is canceled," 27 Apr. 2021 Pfizer is aware of the Israeli cases of myocarditis, the company said in a statement. Fortune, "Israel to investigate mysterious heart inflammation cases following Pfizer jab," 27 Apr. 2021 Allen Independent School District said in an email that Burcu Hezar was an 11th grader at Allen High School, KXAS-TV (NBC5) reported. Nataly Keomoungkhoun, Dallas News, "Allen man who police believe killed his mother, sister was having an ‘episode,’ affidavit says," 27 Apr. 2021 General manager John Lynch said in February that Garoppolo’s injury issues forced the team to think about finding another quarterback for the 2021 season. oregonlive, "San Francisco 49ers’ Kyle Shanahan: ‘Can’t guarantee that anybody in the world will be alive on Sunday’," 27 Apr. 2021 Recent Examples on the Web: Adverb Masvidal stepped in on six days’ notice, flying halfway around the world to fill in for No. 1 title contender Gilbert Burns after Burns tested positive for COVID-19. Mark Long, orlandosentinel.com, "Usman tops Masvidal, UFC 261 returns sports world to normal," 26 Apr. 2021 With shrinking bookings, the government has stepped in to cushion the blow to the tourism sector. BostonGlobe.com, "Egyptology is having a big moment. But will tourists come?," 24 Apr. 2021 Masvidal stepped in on six days’ notice, flying halfway around the world to fill in for No. 1 title contender Gilbert Burns after Burns tested positive for COVID-19. oregonlive, "How to watch UFC 261 Masvidal vs Usman 2 on ESPN Plus; PPV price, fight card, odds, preview, date and time (4/24/21)," 24 Apr. 2021 With shrinking bookings, the government has stepped in to cushion the blow to the tourism sector. New York Times, "Egyptology Is Having a Big Moment. But Will Tourists Come?," 24 Apr. 2021 The National Association of Letter Carriers, the Postal Service’s largest union, has stepped in to defend both Bloom and Moak. Washington Post, "Biden’s USPS nominees face confirmation hearing as Democrats consider paths to oust DeJoy," 21 Apr. 2021 Sampson is 7 inches taller and 35 pounds heavier than Mills, and Gay stepped in to confront Sampson, before teammates separated the players. Nat Newell, The Indianapolis Star, "Pacers' JaKarr Sampson suspended one game for headbutting Spurs' Patty Mills," 21 Apr. 2021 After continuing his recovery during the early portion of last season, Smith stepped in for Washington and started six games, helping lead the way to an NFC East title while compiling a 5-1 record and throwing for 1,582 yards. Michael Middlehurst-schwartz, USA TODAY, "Alex Smith retires from NFL after completing remarkable comeback from leg injury," 19 Apr. 2021 The 6-3 Shaffmaster stepped in at setter and gave the Gophers versatility at the position. Rachel Blount, Star Tribune, "No rest for Gophers volleyball as second 2021 season looms," 19 Apr. 2021 Recent Examples on the Web: Adjective Even Tytoń, who was vocal about his in-game frustrations during and after the contest, spoke of the important opportunity the Nashville draw represented. Pat Brennan, The Enquirer, "What FC Cincinnati's 2-2 draw at Nashville SC says about FCC's progress," 19 Apr. 2021 Will in-game mascot hot-dog races still be held between Mustard, Onion and Ketchup? Marc Bona, cleveland, "Progressive Field changes 2021: You’ve got questions, we’ve got answers," 2 Apr. 2021 Follow updates from the game itself at our in-game live blog. Jr Radcliffe, Milwaukee Journal Sentinel, "Opening day live blog: No score through first two innings," 1 Apr. 2021 Yet Preller also made clear this is not an all-in year for the Padres. Bill Shaikin, Los Angeles Times, "Padres get their party started with a win amid proclamations of expectations and hope," 1 Apr. 2021 Families are being asked to arrange their own transportation for students on their in-class learning days. From Usa Today Network And Wire Reports, USA TODAY, "Student rallies, high school pay-per-view, $500 tips: News from around our 50 states," 10 Sep. 2020 Jonathan Hinze, president of UxC, notes that among nonsubsidized mines, the all-in cost of production can range anywhere from $10 a pound up to $38 a pound. Jinjoo Lee, WSJ, "Uranium Has That Healthy Glow Again," 23 Mar. 2021 In other words, Curry expressed his uneasiness with his teammates well before his in-game outburst. Mark Medina, USA TODAY, "Opinion: Warriors at pivotal point with Stephen Curry’s frustrations and James Wiseman’s benching," 12 Mar. 2021 For the return to all-in, Barnes said the district purchased plexiglass shields for both students and staff. John Benson, cleveland, "Lakewood City Schools announce March 15 all-in date, address learning loss with invite-only ‘Spring into STEM’ program: Photos," 8 Mar. 2021 Recent Examples on the Web: Noun Open for dine-in and takeout from Tuesday to Sunday, with indoor and patio dining. Stephanie Breijo, Los Angeles Times, "A new gelato bar with 12 flavors including fig and mascarpone? Yes, please," 27 Apr. 2021 The base game is currently available for a $120 buy-in. Rob Wieland, Forbes, "Cyberpunk Red Enters The Combat Zone," 26 Apr. 2021 The main entrance will be used for check-in before patients are guided to a series of individual, private stations for vaccination. Jamie Landers, The Arizona Republic, "New indoor vaccination site opens at Gila River Arena as State Farm Stadium's run comes to end," 23 Apr. 2021 Robertson continued his breakout season by roofing a first-period shot past Jonathan Bernier and later setting up Pavelski for a tap-in. Matthew Defranks, Dallas News, "Stars rounding into form at critical time Dallas extends win streak to four straight games," 21 Apr. 2021 When Smart missed a floater with 1:08 left, Tristan Thompson muscled inside for a tip-in. BostonGlobe.com, "Jayson Tatum and Celtics outlast Stephen Curry and Warriors," 17 Apr. 2021 Tampa Bay answered right back at 9:57 when Mikhail Sergachev found Colton down low on a cross-ice pass for a backdoor tap-in off the pads of Driedger. Erik Erlendsson, Star Tribune, "Hedman scores in OT to give Lightning 3-2 win over Panthers," 15 Apr. 2021 Tampa Bay answered right back at 9:57 when Mikhail Sergachev found Colton down low on a cross-ice pass for a backdoor tap-in off the pads of Driedger. Erik Erlendsson, sun-sentinel.com, "Panthers give up lead in third, lose in OT to Lightning," 15 Apr. 2021 Thanks to Iron Horse Pizza, 21 Iron Horse Boulevard, 20-percent of its profits will be given to the SHS Fencing Club for dine-in or takeout on Thursday, April 8. courant.com, "Community News For The Farmington Valley Edition," 2 Apr. 2021

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

Preposition

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

Adverb

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

Adjective

1599, in the meaning defined at sense 1a

Noun

1764, in the meaning defined at sense 1

History and Etymology for in

Preposition

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

sit-in

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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

30 Apr 2021

Cite this Entry

“In.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in. Accessed 8 May. 2021.

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More Definitions for in

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

in

adverb

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

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

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

in

noun

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 condition You're in luck!We're in trouble.
6 used to show manner or purpose I'm in a hurry.He laughed in reply.
7 : into sense 2 It broke in pieces.

in

adverb
\ 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.

inch

Kids Definition of IN

Indiana

in-

prefix
variants: or il- or im- or ir-

Kids Definition of in-

 (Entry 1 of 7)

: not : non-, un- usually il- before l illogical , im- before b, m, or p immoralimpractical , ir- before r irreconcilable and in- before other sounds incomplete

in-

prefix
variants: or il- or im- or ir-

Kids Definition of in- (Entry 2 of 7)

1 : in : within : into : toward : on usually il- before l illuminate , im- before b, m, or p import , ir- before r irradiate , and in- before other sounds infect
2 : en- sense 2 imperil

Medical Definition of in

 (Entry 1 of 2)

inch

In

symbol

Medical Definition of In (Entry 2 of 2)

indium

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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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More from Merriam-Webster on in

Thesaurus: All synonyms and antonyms for in

Nglish: Translation of in for Spanish Speakers

Britannica English: Translation of in for Arabic Speakers

Britannica.com: Encyclopedia article about in

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