inside inside /ˈɪnˌsaɪd/

adjective

1. () Relating to or being on the side closer to the center or within a defined space  ( inside )
   relating to or being on the side closer to the center or within a defined space
    He reached into his inside jacket pocket
   he reached into his inside jacket pocket
    Inside out
   inside out
    An inside pitch is between home plate and the batter
   an inside pitch is between home plate and the batter
   
2. () Being or applying to the inside of a building  ( inside )
   being or applying to the inside of a building
    An inside wall
   an inside wall
   
3. Away from the outer edge  ( inside )
   away from the outer edge
    The inside lane
   the inside lane
   
4. Confined to an exclusive group  ( inside , privileged , inner )
   confined to an exclusive group
    Privy to inner knowledge
   privy to inner knowledge
    Inside information
   inside information
    Privileged information
   privileged information
   

adverb

1. () Within a building  ( indoors , inside )
   within a building
    In winter we play inside
   in winter we play inside
   
2. () On the inside  ( within , inside )
   on the inside
    Inside, the car is a mess
   inside, the car is a mess
   
3. In reality  ( at bottom , deep down , in spite of appearance , at heart , inside )
   in reality
    She is very kind at heart
   she is very kind at heart
   
4. With respect to private feelings  ( inside , inwardly )
   with respect to private feelings
    Inwardly, she was raging
   inwardly, she was raging
   

noun

1. () The inner or enclosed surface of something  ( interior , inside )
   the inner or enclosed surface of something
     They found shelter inside a cozy cabin during the snowstorm.
   They found shelter inside a cozy cabin during the snowstorm.
   
2. () The region that is inside of something  ( inside , interior )
   the region that is inside of something
    The interior of the car was spacious and comfortable, with leather seats and a touchscreen display
   The interior of the car was spacious and comfortable, with leather seats and a touchscreen display
   

preposition

1. () Located inside the confines or boundaries of something; not external.  ( in , inside , within )
   Located inside the confines or boundaries of something; not external.