Idioms

    be in for, to be bound to undergo something, especially a disagreeable experience: We are in for a long speech.
    in for it, Slang. about to suffer chastisement or unpleasant consequences, especially of one's own actions or omissions: I forgot our anniversary again, and I'll be in for it now.Also British, for it.
    in that, because; inasmuch as: In that you won't have time for supper, let me give you something now.
    in with, on friendly terms with; familiar or associating with: They are in with all the important people.

Origin of in

before 900; 1925–30 for def 28; Middle English, Old English; cognate with German, Dutch, Old Frisian, Old Saxon, Gothic in, Old Norse ī, Latin in, Greek en, Lithuanian į

In

Symbol, Chemistry.

IN

Indiana (approved especially for use with zip code).

in-

1

a prefix representing English in (income; indwelling; inland, etc.), but used also as a verb-formative with transitive, intensive, or sometimes little apparent force (intrust; inweave, etc.). It often assumes the same forms as in-2, such as en-1, em-1, im-3.

Origin of in-

1
Middle English, Old English; see in

in-

2

a prefix of Latin origin meaning primarily “in,” but used also as a verb-formative with the same force as in-1 (incarcerate; incantation).
Also il-, im-, ir-.
Compare em-1, en-1.

Origin of in-

2
< Latin, combining form of in (preposition); cognate with in

in-

3

a prefix of Latin origin, corresponding to English un-, having a negative or privative force, freely used as an English formative, especially of adjectives and their derivatives and of nouns (inattention; indefensible; inexpensive; inorganic; invariable). It assumes the same phonetic phases as in-2 (impartial; immeasurable; illiterate; irregular, etc.). In French, it became en- and thus occurs unfelt in such words as enemy (French ennemi, Latin inimicus, lit., not friendly).
Also il-, im-, ir-.

Origin of in-

3
< Latin; akin to an-1, a-6, un-1

Synonym study

The prefixes in- and un- may both have, among other uses, a negative force. In- is the form derived from Latin, and is therefore used in learned words or in words derived from Latin or (rarely) Greek: inaccessible, inaccuracy, inadequate, etc. Un- is the native form going back to Old English, used in words of native origin, and sometimes used in combination with words of other origins if these words are in common use: unloving, ungodly, unfeeling, unnecessary, unsafe.

-in

1

a suffix, occurring in adjectives of Greek and Latin origin, meaning “pertaining to,” and (in nouns thence derived) also imitated in English (coffin; cousin, etc.).

Origin of -in

1
Middle English -in, -ine < Old French < Latin -inus, -ina, -inum < Greek -inos, -inē, -inon

-in

2

a noun suffix used in a special manner in chemical and mineralogical nomenclature (glycerin; acetin, etc.). In spelling, usage wavers between -in and -ine. In chemistry a certain distinction of use is attempted, basic substances having the termination -ine rather than -in (aconitine; aniline, etc.), and -in being restricted to certain neutral compounds, glycerides, glucosides, and proteids (albumin; palmitin, etc.), but this distinction is not always observed.

Origin of -in

2
< New Latin -ina. See -ine2

-in

3

a suffixal use of the adverb in, extracted from sit-in, forming compound nouns, usually from verbs, referring to organized protests through or in support of the named activity (kneel-in; chain-in; be-in) or, more generally, to any organized social or cultural activity (cook-in; sing-in).

in.

inch; inches.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for in

in

1

preposition

inside; withinno smoking in the auditorium
at a place where there islying in the shade; walking in the rain
indicating a state, situation, or conditionin a deep sleep; standing in silence
before or when (a period of time) has elapsedcome back in one year
using (a language, etc) as a means of communicationwritten in code
concerned or involved with, esp as an occupationin journalism
expressing a ratio, proportion, or probabilityone in five boys
while or by performing the action of; as a consequence of or by means ofin crossing the street he was run over
used to indicate goal or purposein honour of the president
(used of certain animals) about to give birth to; pregnant with (specified offspring)in foal; in calf
a variant of into she fell in the water; he tore the paper in two
have it in one (often foll by an infinitive) to have the ability (to do something)
in it Australian informal joining in; taking part
in that or in so far as (conjunction) because or to the extent that; inasmuch asI regret my remark in that it upset you
nothing in it no difference or interval between two things

adverb (particle)

in or into a particular place; inward or indoorscome in; bring him in
so as to achieve office, power, or authoritythe Conservatives got in at the last election
so as to encloseblock in; cover in a hole
(in certain games) so as to take one's turn or one's team's turn at a certain aspect of the play; taking one's inningsyou have to get the other side out before you go in
British (of a fire) alightdo you keep the fire in all night?
(in combination) indicating an activity or gathering, esp one organized to protest against somethingteach-in; work-in
in at present at (the beginning, end, etc)
in between between
in for about to be affected by (something, esp something unpleasant)you're in for a shock
in on acquainted with or sharing inI was in on all his plans
in with associated with; friendly with; regarded highly by
have it in for or have got it in for informal to wish or intend harm towards

adjective

(stressed) fashionable; modishthe in thing to do
NZ competingyou've got to be in to win

noun

ins and outs intricacies or complications; detailsthe ins and outs of a computer system

Word Origin for in

Old English; compare Old High German in, Welsh yn, Old Norse ī, Latin in, Greek en

in

2

the internet domain name for

India

In

the chemical symbol for

indium

IN

abbreviation for

Indiana

in.

abbreviation for

inch(es)

-in

suffix forming nouns

indicating a neutral organic compound, including proteins, glucosides, and glyceridesinsulin; digitoxin; tripalmitin
indicating an enzyme in certain nonsystematic namespepsin
indicating a pharmaceutical substancepenicillin; riboflavin; aspirin
indicating a chemical substance in certain nonsystematic namescoumarin

Word Origin for -in

from New Latin -ina; compare -ine ²

in-

1

il-, im- or ir-

prefix

not; non-incredible; insincere; illegal; imperfect; irregular Compare un- 1

Word Origin for in-

from Latin in-; related to ne-, nōn not

in-

2

il-, im- or ir-

prefix

in; into; towards; within; oninfiltrate; immigrate
having an intensive or causative functioninflame; imperil

Word Origin for in-

from in (prep, adv)
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

Word Origin and History for in

Old English in (prep.) "in, into, upon, on, at, among; about, during;" inne (adv.) "within, inside," from Proto-Germanic *in (cf. Old Frisian, Dutch, German, Gothic in, Old Norse i), from PIE *en "in" (cf. Greek en, Latin in "in, into," Old Irish in, Welsh yn-, Old Church Slavonic on-). As an adjective from 1590s.

The forms merged in Middle English. Modern sense distinction between in and on is from later Middle English. Sense of "holding power" (the in party) first recorded c.1600; that of "exclusive" (the in-crowd, an in-joke) is from 1907 (in-group); that of "stylish, fashionable" (the in thing) is from 1960. The noun sense of "influence, access" (have an in with) first recorded 1929 in American English. In-and-out "copulation" is attested from 1610s.

-in

1

suffix attached to a verb, first attested 1960 with sit-in (which probably was influenced by sit-down strike); used first of protests, extended c.1965 to any gathering.

-in

2

chemical suffix, usually indicating a neutral substance, antibiotic, vitamin, or hormone; see -ine (2).

in-

1

prefix meaning "not, opposite of, without" (also im-, il-, ir- by assimilation of -n- with following consonant), from Latin in- "not," cognate with Greek an-, Old English un-, from PIE *ne "not" (see un- (1)).

in-

2

element meaning "into, in, on, upon" (also im-, il-, ir- by assimilation of -n- with following consonant), from Latin in- "in" (see in). In Old French this often became en-, which usually was respelled in English to conform with Latin, but not always, which accounts for pairs like enquire/inquire. There was a native form, which in West Saxon usually appeared as on- (cf. Old English onliehtan "to enlighten"), and some verbs survived into Middle English (cf. inwrite "to inscribe"), but all now seem to be extinct. Not related to in- (1) "not," which also was a common prefix in Latin: to the Romans impressus could mean "pressed" or "unpressed."

Online Etymology Dictionary, © 2010 Douglas Harper

in in Medicine

In

The symbol for the elementindium

-in

suff.

Neutral chemical compound:inulin.
Pharmaceutical:rifampin.
Antibiotic:penicillin.
Antigen:tuberculin.
Variant of-ine
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

in in Science

In

The symbol for indium.

indium

[ĭndē-əm]

In

A soft, malleable, silvery-white metallic element that occurs mainly in ores of zinc and lead. It is used in the manufacture of semiconductors, in bearings for aircraft engines, and as a plating over silver in mirrors. Atomic number 49; atomic weight 114.82; melting point 156.61°C; boiling point 2,080°C; specific gravity 7.31; valence 1, 2, 3. See Periodic Table.

in.

Abbreviation of inch
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with in

in

In addition to the idioms beginning with in, also see under out of

  • in a bad light
  • in a bad mood
  • in a bad way
  • in a big way
  • in a bind
  • in a breeze
  • in absentia
  • in a cold sweat
  • in addition
  • in a dither
  • in advance
  • in a fix
  • in a flash
  • in a flutter
  • in a fog
  • in a good light
  • in a hole
  • in a huff
  • in a jam
  • in a lather
  • in all
  • in all one's born days
  • in all probability
  • in a manner of speaking
  • in and of itself
  • in a nutshell
  • in any case
  • in a pig's eye
  • in a pinch
  • in arms
  • in arrears
  • in a rut
  • in a sense
  • in a snit
  • in a state
  • in a stew
  • in a tight corner
  • in a tizzy
  • in at the death
  • in a walk
  • in a way
  • in awe of, be
  • in a while
  • in a word
  • in a world of one's own
  • in back of
  • in bad
  • in bad faith
  • in bad with, be
  • in behalf of
  • in between
  • in between times
  • in black and white
  • in brief
  • in bulk
  • in cahoots
  • in care of
  • in case
  • in cement
  • in character
  • in charge
  • in check
  • in chorus
  • in circles
  • in circulation
  • in clover
  • in cold blood
  • in cold storage
  • in commission
  • in common
  • in concert
  • in condition
  • in confidence
  • in conscience
  • in consequence
  • in consideration of
  • in creation
  • in deep
  • in default of
  • in defiance of
  • in demand
  • in depth
  • in detail
  • in dispute
  • in drag
  • in due course
  • in Dutch
  • in earnest
  • in effect
  • in effigy
  • in escrow
  • in essence
  • in evidence
  • in excess of
  • in exchange
  • in fact
  • in fashion
  • in favor of
  • in favor with
  • in fine feather
  • in for
  • in for a penny, in for a pound
  • in force
  • in front of
  • in full
  • in full swing
  • in general
  • in good condition
  • in good faith
  • in good hands
  • in good part
  • in good spirits
  • in good stead
  • in good time
  • in good with, be
  • in half
  • in hand
  • in harness
  • in heat
  • in high dudgeon
  • in honor of
  • in hopes of
  • in itself
  • in keeping with
  • in key
  • in kind
  • in large measure
  • in league with
  • in left field
  • in lieu of
  • in light of
  • in limbo
  • in line
  • in love
  • in luck
  • in memory of
  • in mind
  • in name only
  • in no case
  • in nothing flat
  • in no time
  • in no uncertain terms
  • in on, be
  • in one blow
  • in one breath
  • in one ear and out the other
  • in one fell swoop
  • in one piece
  • in one's
  • in one's behalf
  • in one's blood
  • in one's book
  • in one's cups
  • in one's element
  • in one's eyes
  • in one's favor
  • in one's glory
  • in one's hands
  • in one's heart of hearts
  • in one's interest
  • in one's mind's eye
  • in one's name
  • in one's own backyard
  • in one's own right
  • in one's own world
  • in one's pocket
  • in one's prime
  • in one's right mind
  • in one's shell
  • in one's tracks
  • in one stroke
  • in one's way
  • in orbit
  • in order
  • in other words
  • in over one's head
  • in part
  • in particular
  • in passing
  • in perpetuity
  • in person
  • in phase
  • in place
  • in place of
  • in plain English
  • in play
  • in pocket
  • in point
  • in practice
  • in principle
  • in print
  • in private
  • in progress
  • in proportion
  • in public
  • in question
  • in quest of
  • in reach
  • in reality
  • in reason
  • in reference to
  • in regard to
  • in relation to
  • in reserve
  • in residence
  • in respect to
  • in retrospect
  • in return
  • in round numbers
  • ins and outs
  • in search of
  • in season
  • in secret
  • in seventh heaven
  • in shape
  • in short
  • in short order
  • in short supply
  • inside of
  • inside out
  • inside track, the
  • in sight
  • in single file
  • in so many words
  • in some measure
  • in someone's
  • in someone's bad graces
  • in someone's face
  • in someone's good graces
  • in someone's hair
  • in someone's shoes
  • in someone's stead
  • in spades
  • in specie
  • in spite of
  • in state
  • in step
  • in stitches
  • in stock
  • in store
  • in stride
  • in style
  • in substance
  • in terms of
  • in that
  • in that case
  • in the act
  • in the aggregate
  • in the air
  • in the air
  • in the altogether
  • in the back
  • in the bag
  • in the balance
  • in the ballpark
  • in the bargain
  • in the black
  • in the blood
  • in the bud
  • in the buff
  • in the can
  • in the cards
  • in the care of
  • in the case of
  • in the chips
  • in the circumstances
  • in the clear
  • in the clouds
  • in the cold light of day
  • in the course of
  • in the dark
  • in the dock
  • in the doghouse
  • in the doldrums
  • in the driver's seat
  • in the dumps
  • in the dust, leave someone
  • in the end
  • in the event of
  • in the eye
  • in the eye of
  • in the face
  • in the face of
  • in the family way
  • in the final analysis
  • in the first place
  • in the flesh
  • in the flush of
  • in the fullness of time
  • in the groove
  • in the gutter
  • in the hands of
  • in the heat of
  • in the hole
  • in the hope
  • in the hot seat
  • in the interest of
  • in the interim
  • in the know
  • in the lap of luxury
  • in the least
  • in the limelight
  • in the long run
  • in the loop
  • in the lurch
  • in the main
  • in the making
  • in the market for
  • in the middle of
  • in the midst
  • in the money
  • in the mood
  • in the mouth
  • in the name of
  • in the near future
  • in the neck
  • in the neighborhood of
  • in the nick of time
  • in the offing
  • in the picture, be
  • in the pink
  • in the pipeline
  • in the public eye
  • in the raw
  • in the red
  • in there pitching
  • in the right, be
  • in the rough
  • in the round
  • in the running
  • in the saddle
  • in the same boat
  • in the same breath
  • in the same league
  • in the same mold
  • in the second place
  • in the short run
  • in the soup
  • in the street
  • in the swim
  • in the teeth of
  • in the throes
  • in the twinkling of an eye
  • in the unlikely event
  • in the wake of
  • in the way
  • in the wind
  • in the wings
  • in the works
  • in the world
  • in the worst way
  • in the wrong
  • in thing, the
  • in this day and age
  • in time
  • in time
  • in token of
  • in touch, be
  • in tow
  • in trouble with
  • in trust
  • in tune
  • in turn
  • in two shakes
  • in unison
  • in up to
  • in vain
  • in view
  • in view of
  • in wait
  • in waiting
  • in with, be
  • in your face

    The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.