Definition: [noun] the inner side or surface of something.
Example: wipe the inside of the windscreen
Definition: [noun] the inner part; the interior.
Example: the inside of the car was like an oven
Definition: [adjective] situated on or in the inside.
Example: an inside pocket
Definition: [adjective] known or done by someone within a group or organization.
Example: they were accused of selling shares while in possession of inside information
Definition: [preposition] situated with the boundaries or confines of.
Example: a radio was playing inside the flat
Definition: [preposition] in less than (the period of time specified).
Example: the oven will have paid for itself inside 18 months
Definition: [adverb] within the boundaries or confines of a place.
Example: Mr Jackson is waiting for you inside