Learner's definition of INTO
1 : to or toward the inside of (something)
She came into the room/house.
a medicine injected into the bloodstream
Please put the bowl into the sink/cupboard.
They were heading into town.
He jumped into the pool.
2 : in the direction of (something)
You should never look directly into [=toward] the sun.
She was just staring into space.
peering/looking into the past/future
3 — used to describe hitting or touching something or someone 4 : to the state, condition, or form of (something)
She was shocked into silence.
come into being/existence
as day turns into night
I got into trouble again.
her slow descent into madness
converting sunlight into electricity
He translated the poem from Latin into English.
change dollars into euros
breaking up into smaller pieces
5 a — used to say that something or someone has become a part of something b — used to say that someone has become involved in something (such as a profession) c — used to say that someone has been forced or persuaded to do something 6 informal — used to say that someone is interested in and excited about (something)
He was never into sports.
I'm really into her music.
I usually enjoy her books, but I just couldn't get into this one.
7 — used to say how long something lasts
The party continued well/far/long/late into the night.
This snow should last well into the spring.
The heat wave will continue into next week.
8 : relating to or concerning (something) 9 — used to describe dividing one number by another number
be into (someone) forUS, informal
: to owe someone (an amount of money)