1. (noun)inside, interior the region that is inside of something
2. (noun)inside, interior the inner or enclosed surface of something
3. (adj)inside relating to or being on the sidecloser 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"
4. (adj)inside(a) being or applying to the inside of a building "an inside wall"
5. (adj)inside, inner, privileged confined to an exclusivegroup "privy to inner knowledge"; "inside information"; "privileged information"
6. (adj)inside away from the outer edge "an inner lahne"; "the inside lane"