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⇱ inside - WordReference.com Dictionary of English

inside

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌɪnˈsaɪd/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌɪnˈsaɪd, ˈɪnˌsaɪd/

US:USA pronunciation: respellingUSA pronunciation: respelling(prep. in′sīd′, in′sīd′; adv. in′sīd′; n. in′sīd′; adj. in′sīd′, in′-, in′sīd′)



WordReference Random House Learner's Dictionary of American English © 2026
in•side /ˌɪnˈsaɪd, ˈɪnˌsaɪd/USA pronunciation   prep. 
  1. on the inner side or part of;
    within:inside the circle.
  2. before;
    within:to arrive inside an hour.

adv. 
  1. in or into the inner part:Look inside.
  2. indoors:to play inside on rainy days.
  3. by true nature;
    in one's mind or soul:Inside, she's really very shy.

n. [countable]
  1. the inner part;
    interior:the inside of the house.
  2. the inner side or surface:the inside of the hand.
  3. Informal Terms insides, [plural]the inner parts of the body, esp. the stomach and intestines.
  4. a position within a circle of power, etc.:to be on the inside in the administration.
  5. inward nature, thoughts, feelings, etc.:[countable* usually singular]I smile that way on the outside, but on the inside I'm really upset.

adj. [before a noun]
  1. located or being on or in the inside:an inside seat on the airplane.
  2. located close to the side of the road:tried to pass on the inside lane.
  3. private;
    confidential:inside information.
Idioms
  1. Idioms inside of, within the space or period of;
    before:We'll reach the city inside of twenty minutes.
  2. Idioms inside out:
    • with the inner side reversed to face the outside:Turn that shirt inside out when you wash it.
    • thoroughly;
      completely:She knew me inside out.


WordReference Random House Unabridged Dictionary of American English © 2026
in•side  (prep. in′sīd′, in′sīd′;adv. in′sīd′;
n. in′sīd′;
adj. in′sīd′, in′-, in′sīd′),USA pronunciation prep. 
  1. on the inner side or part of;
    within:inside the circle; inside the envelope.
  2. prior to the elapse of;
    within:He promised to arrive inside an hour.

adv. 
  1. in or into the inner part:Please go inside.
  2. indoors:They play inside on rainy days.
  3. within one's heart, reason, etc.;
    by true nature;
    basically:I know inside that he's not guilty. Inside, she's really very shy.
  4. Slang Termsin prison.
  5. inside of, [Informal.]within the space or period of:Our car broke down again inside of a mile.

n. 
  1. the inner or internal part;
    interior:the inside of the house.
  2. the inner side or surface:the inside of the hand; He pinned the money to the inside of his jacket.
  3. Informal TermsUsually, insides. the inner parts of the body, esp. the stomach and intestines:The coffee scalded my insides.
  4. a select or inner circle of power, prestige, etc.:a man on the inside.
  5. the shortest of several parallel, curving tracks or lanes;
    the part of an oval track closest to the inner rail:The horse came up fast on the inside.
  6. the inward nature, mind, feelings, etc.
  7. Slang Termsconfidential or secret information.
  8. an inside passenger or place in a coach, carriage, etc.
  9. Idioms inside out:
    • with the inner side reversed to face the outside.
    • thoroughly;
      completely:She knew the work inside out.

adj. 
  1. situated or being on or in the inside;
    interior;
    internal:an inside seat.
  2. acting, employed, done, or originating within a building or place:He used to work on the dock but now he has an inside job.
  3. derived from the inner circle of those concerned in and having private knowledge of a situation:inside information.
  4. Sport[Baseball.](of a pitched ball) passing between home plate and the batter:The pitch was low and inside.
  • 1350–1400; Middle English; see in, side1
    8. Inside, interior both refer to the inner part or space within something. Inside is a common word, and is used with reference to things of any size, small or large:the inside of a pocket.Interior, somewhat more formal, denotes the inner part or the space or regions within; it usually suggests considerable size or extent, and sometimes a richness of decoration:the interior of a country, of the earth, of a cathedral.
    8. outside, exterior.
Collins Concise English Dictionary © HarperCollins Publishers::
inside n /ˈɪnˌsaɪd/
  1. the interior; inner or enclosed part or surface
  2. the side of a path away from the road or adjacent to a wall
  3. (also plural) informal the internal organs of the body, esp the stomach and bowels
  4. inside of ⇒ in a period of time less than; within
  5. inside out ⇒ with the inside facing outwards
  6. know something inside out ⇒ to know something thoroughly or perfectly
 prep /ˌɪnˈsaɪd/
  1. in or to the interior of; within or to within; on the inside of
 adj /ˈɪnˌsaɪd/
  1. on or of an interior; on the inside: an inside door
  2. (prenominal) arranged or provided by someone within an organization or building, esp illicitly: the raid was an inside job, inside information
 adv /ˌɪnˈsaɪd/
  1. within or to within a thing or place; indoors
USAGE: See outside
'inside' also found in these entries (note: many are not synonyms or translations):
Collocations: from the inside out, inside information, is inside the [house, car, bathroom], more...

Forum discussions with the word(s) "inside" in the title:

"" or '' inside "" or ''
?"an old, gray thermos flask made of a plastic shell and a mercury-coated inside, its cover the shape of a monk’s hat"?
...at a different speed to the compressors inside it
...please keep in mind that eating and drinking are allowed only inside the grounds.
''The'' is out in the sentence or take ''The'' off inside sentence
'at the construction site inside ..' or 'on the construction
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(from) inside the purse
(The) Colonel should be inside, Captain.
(the) inside (of) a building
A built-in closet on/to/inside/x a wall
A container you can put inside another one: nestable?
A country is an "it" or he/she? Example inside
a hotel with historic and cultural atmosphere inside
"A is inside of B" VS "A is inside B"
A question mark both inside and outside of quotation marks?
a reveal inside
a sailing ship inside a small necked bottle
A sentence inside a sentence. (relative clause)
a square that is 100 pixels wide and a circle that is centered inside the square
a/the little artist inside of you crying
absolutely zero inside these walls
Actually, today they announced low prices. This lovely giant panda is inviting us inside. Let's go!
AE/BE Dashes and other punctuation inside or outside quotation marks.
after a long hard bang inside
After she has pooped, I will let her back inside.
all on the outside/all be inside
all what is going on inside it
Always a suspicion burns me from inside
always had a book inside them
more...

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