Definitions
1.nounThe interior or inner part."The inside of the building has been extensively restored."
2.nounThe left-hand side of a road if one drives on the left, or right-hand side if one drives on the right."On a motorway, you should never pass another vehicle on the inside."
3.nounThe side of a curved road, racetrack etc. that has the shorter arc length; the side of a racetrack nearer the interior of the course or some other point of reference."The car in front drifted wide on the bend, so I darted up the inside to take the lead."
4.noun(in the plural) The interior organs of the body, especially the guts."Eating that stuff will damage your insides."
5.nounA passenger within a coach or carriage, as distinguished from one upon the outside.
6.nounGuts, intestines, innards