to the interior or inner parts of: to look into a case to the middle or midst of so as to be surrounded by: into the water, into the bushes against; up against: he drove into a wall used to indicate the result of a transformation or change: he changed into a monster used to indicate a dividend: three into six is two interested or enthusiastically involved in: I'm really into cinema these days
WordReference Random House Learner's Dictionary of American English © 2025
in•to /ˈɪntu; unstressed -tʊ, -tə/USA pronunciation
prep.
WordReference Random House Unabridged Dictionary of American English © 2025- to the inside of;
in toward:He walked into the room. - toward or in the direction of:Are you going into town?
- to a point of contact with;
against:He accidentally backed his truck into a parked car. - This word is used to indicate insertion in:The computer wasn't plugged into the socket.
- This word is used to indicate entry, inclusion, or introduction in a place or condition:She was received into the church.
- to a certain condition or form:The road has lapsed into disrepair.
- to an occupation, action, possession, or acceptance of:He went into banking.
- This word is used to indicate a continuing extent in time or space:The noise of the dog barking lasted well into the night.
- MathematicsThis word is used between two numbers to indicate that the second number is to be divided by the first number:2 into 20 equals 10.
- Informal Termsinterested or absorbed in, esp. obsessively;
hooked on:She's into yoga. - Slang Terms[Informal.]in debt to:I'm into him for ten dollars.
in•to
(in′to̅o̅; unstressed in′tŏŏ, -tə),USA pronunciation prep.
adj.
- to the inside of;
in toward:He walked into the room. The train chugged into the station. - toward or in the direction of:going into town.
- to a point of contact with;
against:backed into a parked car. - (used to indicate insertion or immersion in):plugged into the socket.
- (used to indicate entry, inclusion, or introduction in a place or condition):received into the church.
- to the state, condition, or form assumed or brought about:went into shock;lapsed into disrepair;translated into another language.
- to the occupation, action, possession, circumstance, or acceptance of:went into banking; coerced into complying.
- (used to indicate a continuing extent in time or space):lasted into the night; far into the distance.
- (used to indicate the number to be divided by another number):2 into 20 equals 10.
- Informal Termsinterested or absorbed in, esp. obsessively:She's into yoga and gardening.
- Slang Termsin debt to:I'm into him for ten dollars.
adj.
- Mathematicspertaining to a function or map from one set to another set, the range of which is a proper subset of the second set, as the function f, from the set of all integers into the set of all perfect squares where f(x) = x2 for every integer.
- bef. 1000; Middle English, Old English; see in, to
Collins Concise English Dictionary © HarperCollins Publishers::
'fit into' also found in these entries (note: many are not synonyms or translations):
come
- corner cabinet
- dog clutch
- drop siding
- filler
- full
- interlock
- key
- male
- mickey
- retrofit
- slot
- spigot
- spline
- squeeze
- squinch
- stake
- tenon
- vest-pocket