into

To or towards the inside of.

Mary danced into the house.

Pour the wine into the decanter.

To or towards the region of.

We left the house and walked into the street.

The eagle flew off into the wide blue sky.

Against, especially with force or violence.

The car crashed into the tree.

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

Indicates transition into another form or substance.

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

Right before our eyes, Jake turned into a wolf!

Indicates division or the creation of subgroups or sections.

A cow's stomach is divided into four chambers.

Imagine a country where children do nothing but play until they start compulsory schooling at age seven. Then, without exception, they attend comprehensives until the age of 16. Charging school fees is illegal, and so is sorting pupils into ability groups by streaming or setting.

Initialism of Irish National Teachers' Organisation.