Meaning of “into” - Learner’s Dictionary

into

preposition us uk /ˈɪntə, ˈɪntu/
Could you hammer a nail into the wall to hang this picture up?They hauled the piano into the living room.Owen headed the ball straight into the back of the net.The gunman fired indiscriminately into the crowd.She jumped into a taxi and rushed to the station.
IN

A1 towards the inside or middle of something:

Stop running around and get into bed!
He's gone into a shop across the road.
CHANGE

A2 used to show when a person or thing changes from one form or condition to another:

Peel the cucumber and chop it into small cubes.
We're planning to turn / the smallest bedroom into an office.
Her last novel was translated into nineteen languages.
ABOUT

involving or about something:

an investigation into the cause of the fire
TOWARDS

B1 in the direction of something or someone:

She was looking straight into his eyes.
HIT

B1 moving towards something or someone and hitting them:

I backed the car into the garden wall.
be into sth informal

B1 to be very interested in something:

Kate's really into classical music.
DIVIDE

used when dividing one number by another:

What's 5 into 125?

(Definition of “into” from the Cambridge Learner’s Dictionary © Cambridge University Press)