in vs inside

in

prep
  • During (a period of time). 

  • Within the bounds or limits of. 

  • Into. 

  • Indicates, connotatively, a place-like form of someone's (or something's) personality, as his, her or its psychic and physical characteristics. 

  • Used to indicate a language, script, tone, etc. of a text, speech, etc. 

  • Characterized by. 

  • In replacing the faucet washers, he felt he was making his contribution to the environment. 

  • Surrounded by; among; amidst. 

  • Denoting a state of the subject. 

  • Less water gets in your boots this way. 

  • In the form of, in the denomination of. 

  • Indicating an order or arrangement. 

  • Contained by. 

  • Part of; a member of; out of; from among. 

  • Within (a certain elapsed time); by the end of. 

  • At the end of (a period of time). 

  • Wearing (an item of clothing). 

  • Used to indicate limit, qualification, condition, or circumstance. 

  • Pertaining to; with regard to. 

noun
  • One who, or that which, is in; especially, one who is in office. 

  • A position of power or influence, or a way to get it. 

  • A re-entrant angle; a nook or corner. 

  • The state of a batter/batsman who is currently batting; see innings. 

adv
  • After the beginning of something. 

  • The show still didn't become interesting 20 minutes in. 

  • Denotes a gathering of people assembled for the stated activity, sometimes, though not always, suggesting a protest. 

  • Towards the speaker or other reference point. 

  • At or towards the interior of a defined space, such as a building or room. 

  • So as to be enclosed or surrounded by something. 

adj
  • In fashion; popular. 

  • Falling or remaining within the bounds of the playing area. 

  • (Britain, Ireland, Australia, New Zealand) Burning; ablaze. 

  • Having familiarity or involvement with somebody. 

  • Inserted or fitted into something. 

  • With privilege or possession; used to denote a holding, possession, or seisin 

  • Incoming. 

  • Located indoors, especially at home or at one's office or place of work. 

  • Having been collected or received. 

  • Of the tide, at or near its highest level. 

  • Currently batting. 

  • He is very in with the Joneses. 

  • Having a favourable position, such as a position of influence or expected gain, in relation to another person. 

  • Furled or stowed. 

  • Located inside something. 

inside

prep
  • Within a period of time. 

  • Within the interior of something, closest to the center or to a specific point of reference. 

adv
  • In or to prison. 

  • Intimately, secretly; without expressing what one is feeling or thinking. 

  • Within or towards the interior of something; within the scope or limits of something (a place), especially a building. 

  • Indoors. 

adj
  • Legally married to or related to (e.g. born in wedlock to), and/or residing with, a specified other person (parent, child, or partner); (of a marriage, relationship, etc) existing between two such people. 

  • Toward the batter as it crosses home plate. 

  • At or towards or the left-hand side of the road if one drives on the left, or right-hand side if one drives on the right. 

  • Of or pertaining to the inner surface, limit or boundary. 

  • Nearer to the interior or centre of something. 

  • Originating from, arranged by, or being someone inside an organisation. 

noun
  • The inside scoop; information known only to certain involved people. 

  • The 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 left-hand side of a road if one drives on the left, or right-hand side if one drives on the right. 

  • The interior or inner part. 

  • (in the plural) The interior organs of the body, especially the guts. 

How often have the words in and inside occurred in a corpus of books? (source: Google Ngram Viewer )