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

"Inside information."

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