Definition of inside:
the region that is inside of something
the inner or enclosed surface of something
relating to or being on the side closer to the center or within a defined space; "he reached into his inside jacket pocket"; "inside out"; "an inside pitch is between home plate and the batter"
being or applying to the inside of a building; "an inside wall"
confined to an exclusive group; "privy to inner knowledge"; "inside information"; "privileged information"
away from the outer edge; "an inner lahne"; "the inside lane"
within a building; "in winter we play inside"
on the inside; "inside, the car is a mess"
with respect to private feelings; "inwardly, she was raging"
in reality; "she is very kind at heart"