Definition of "Inside" :
noun: the inner or enclosed surface of something
noun: the region that is inside of something
adjective: away from the outer edge
"The inside lane."
adjective: being or applying to the inside of a building
"An inside wall."
adjective: relating to or being on the side closer to the center or within a defined space
"He reached into his inside jacket pocket."
adjective: confined to an exclusive group
adverb: in reality
adverb: within a building
"In winter we play inside."
adverb: on the inside
"Inside, the car is a mess."
adverb: with respect to private feelings