into Definition

1. To or towards the inside or middle of something.

Example: Go into the room
2. Against; into contact or collision with something or someone.
3. Used to express a change of state or condition:.

Example: change into a suit
Example: get into difficulties
Example: form into groups
4. Having reached a certain period of time.

Example: We were into extra time before Booth scored the winner
5. math.
Used to express division.
Example: four into twenty makes five
6. colloq
Involved with, interested in or enthusiastic about.
Example: She's into Nirvana in a big way