Preposition

1. Going inside (of)

   Mary danced into the house.

2. Going to a geographic region.

   We left the house and walked into the street.

   The plane flew into the open air.

3. Against, especially with force or violence.

   The car crashed into the tree.

   I wasn't careful, and walked into a wall.

4. Producing, becoming

   I carved the piece of driftwood into a sculpture of a whale.

   Right before our eyes, Jake turned into a wolf!

5. Intensely interested in or attracted to.

   I'm really into Shakespeare right now.

   I'm so into you!

6. Taking distinct arguments to distinct values.

   The exponential function maps the set of real numbers into itself.