preposition
into
IHN-too
preposition
1
Moving toward the inside of something.
"She walked into the room and switched on the light."
2
Changing from one form, state, or substance to another.
"The caterpillar turned into a butterfly."
"They translated the novel into five languages."
3
Informal: interested in or enthusiastic about something.
"He's really into old vinyl records these days."
How to Use Into
Learner’s notesIn plain EnglishMoving toward the inside of something, or changing into a different form — and, informally, being keen on something.
Common mistake
Don't confuse with "in to," two separate words, used when "in" belongs with the verb: "she logged in to the account," not "she logged into the account" (though both are common in casual use).
Common pairings
turn into
into pieces
get into trouble
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She walked _____ the room and switched on the light.
Etymology
From Old English into, formed from in plus to.