into

into — preposition

1. moving from a position outside to a position within the boundaries of a space, c

1.prepositionA1
Definition

moving from a position outside to a position within the boundaries of a space, container, or area — for example, walking into a room, pouring water into a cup, or driving into a garage.

Example

Lan carefully walked into the dark room and turned on the light.

walk into + place for entering a space

Cole poured the milk into a tall glass for his little sister.

Common collocations
  • walk into
  • go into
  • come into
  • pour into
  • put into
  • step into
  • jump into
Synonyms
  • inside

    describes position rather than movement toward a position

  • in

    static position, not movement from outside to inside

Antonyms
  • out of

    movement from inside to outside

Grammar Patterns

verb + into + noun phrase referring to a place, container, or enclosed space

Usage Note

Frequently used with verbs that describe movement from one location to another. The object of 'into' is typically an enclosed space, a container, or a defined area.

Common Mistakes

She walked in the room and sat down.
She walked into the room and sat down.
'in' shows position already inside; 'into' shows movement from outside to inside.

2. indicating movement from one condition, form, or appearance to another — for exa

2.prepositionA2
Definition

indicating movement from one condition, form, or appearance to another — for example, ice turning into water, a caterpillar changing into a butterfly, or a building being converted into apartments.

Example

The water in the freezer had turned into solid ice by morning.

turn into + noun for change of physical state

Hari carefully rolled the dough into a thin, even circle for the pizza.

Common collocations
  • turn into
  • change into
  • convert into
  • transform into
  • develop into
  • grow into
  • split into
  • divide into
Synonyms
  • to

    used with 'change' or 'turn' but less specific; 'turn to ice' vs 'turn into ice' — 'into' emphasizes a complete transformation

Grammar Patterns

verb + into + noun phrase referring to a new state, form, or condition

Usage Note

Typically follows verbs of transformation such as 'turn,' 'change,' 'convert,' 'transform,' 'develop,' or 'grow.' The object names the resulting state or form.

Common Mistakes

The witch changed the prince in a frog.
The witch changed the prince into a frog.
'into' is required to show transformation to a different form; 'in' suggests location.

3. showing that a moving person or object strikes against a surface or another obje

3.prepositionB1
Definition

showing that a moving person or object strikes against a surface or another object with noticeable force, without going inside — for example, a car crashing into a wall or someone bumping into a door.

Example

The blue car skidded on the ice and crashed into a large tree.

crash into + object for violent collision

Eitan bumped into the edge of the table and spilled his hot coffee.

Common collocations
  • crash into
  • bump into
  • run into
  • smash into
  • slam into
  • walk into
  • drive into
Synonyms
  • against

    suggests contact without implying force of movement; 'leaned against the wall' vs 'crashed into the wall'

Grammar Patterns

verb + into + noun phrase referring to a surface or object hit with force

Usage Note

The object of 'into' in this sense is always a solid surface or object that stops the movement. The verb itself often carries information about force ('crash,' 'smash,' 'slam') or accidental contact ('bump,' 'walk').

Common Mistakes

He bumped in the wall while walking in the dark.
He bumped into the wall while walking in the dark.
'into' is required for collision contact; 'in' suggests being inside.

4. indicating that a person or thing is positioned, looking, or moving toward a par

4.prepositionA2
Definition

indicating that a person or thing is positioned, looking, or moving toward a particular direction or focal point — for example, staring into the distance, speaking into a microphone, or driving into the wind.

Example

Luca stared into the dark forest but could see no movement at all.

stare into + direction for directing gaze

Amihan whispered something into her friend's ear during the movie.

Common collocations
  • look into
  • stare into
  • gaze into
  • shout into
  • whisper into
  • speak into
  • face into
  • drive into
Synonyms
  • toward

    more general direction without the sense of focused attention or penetration

Antonyms

Grammar Patterns

verb + into + noun phrase referring to a direction or focal point

Usage Note

Common with verbs of seeing or speaking ('look,' 'stare,' 'gaze,' 'whisper,' 'shout') and verbs of facing or orienting. The direction is usually a broad area, not a specific enclosed space.

Common Mistakes

She shouted in the wind, but nobody heard her.
She shouted into the wind, but nobody heard her.
'into' shows direction toward the wind; 'in' suggests already surrounded by it.

5. relating to or connected with a particular subject, topic, or activity — for exa

5.prepositionB1
Definition

relating to or connected with a particular subject, topic, or activity — for example, researching into a historical event, launching an inquiry into a problem, or getting into a conversation about politics.

Example

The police are looking into the cause of the fire at the warehouse.

look into + topic for investigating

The government launched a formal inquiry into the safety of the bridge.

inquiry into + topic for formal investigation

Common collocations
  • look into
  • inquire into
  • research into
  • investigate into
  • go into
  • get into
  • delve into
  • probe into
Synonyms
  • about

    more general; 'a book about birds' could be introductory, while 'research into birds' suggests detailed investigation

  • on

    common with formal topics; 'a lecture on climate change'

Grammar Patterns

noun/verb + into + noun phrase referring to a topic, subject, or activity

Usage Note

Often paired with nouns or verbs that suggest examination or investigation ('research,' 'inquiry,' 'investigation,' 'look'). Less formal synonyms include 'about' or 'on,' but 'into' implies deeper or more active engagement.

6. used in arithmetic to express the operation of dividing one number or quantity b

6.prepositionA2
Definition

used in arithmetic to express the operation of dividing one number or quantity by another — for example, 'three into twelve' meaning twelve divided by three, or cutting a rope into several pieces of equal size.

Example

Two into six equals three, which Lan calculated in her head.

[number] into [number] for arithmetic division

Lan divided the birthday cake into eight slices so everyone could have one.

Common collocations
  • divide into
  • split into
  • cut into
  • separate into
Synonyms
  • divided by

    more common in modern mathematical language; 'into' is traditional and can be confusing

Antonyms

Grammar Patterns

number + into + number (expressing division)

verb + into + number of parts

Usage Note

In everyday mathematics, 'divided by' is more common than 'into' for stating division questions ('twelve divided by three'). The 'into' form appears in traditional arithmetic phrasing ('three into twelve goes four times').

7. showing strong or active interest and enjoyment in a particular activity, hobby,

7.prepositionB1
Definition

showing strong or active interest and enjoyment in a particular activity, hobby, or subject — for example, being really into photography or getting into playing the guitar.

Example

Tuan is really into photography and takes pictures every weekend.

be into + activity for expressing strong interest

Yasmin is into yoga and attends classes three times per week.

Common collocations
  • be into
  • get into
  • really into
  • not into
Synonyms
  • interested in

    more neutral and formal; covers a wider range of interest levels

  • keen on

    British English; similar level of enthusiasm to 'into'

Antonyms

Grammar Patterns

be + into + noun phrase (activity or interest)

get + into + noun phrase (activity or interest)

Usage Note

This sense is informal and conversational. In formal writing, 'interested in' or 'enthusiastic about' are preferred. The negative form 'not into' is very common in everyday speech.

Common Mistakes

I am interested into playing basketball.
I am into playing basketball.
After 'be,' use 'into' directly without 'interested'; the verb 'be interested in' is a separate structure.
Idioms

To like or enjoy doing a particular activity or hobby.

Maya is really into playing the guitar these days.

Are you into cooking, or do you prefer eating out?

To owe a specific amount of money to another person.

After the loan, Diego was into his brother for $200.

Sara is into me for the concert tickets she bought.

Synonym discussion

Sense: preposition/1

'Into,' 'in,' 'inside,' and 'within' all relate to being enclosed or surrounded by something, but they differ in how they express movement versus position. 'Into' is the only one that implies movement from outside to a position inside: you walk into a room (entering from outside) but you are already in the room (static position). 'Inside' emphasises being fully enclosed by the boundaries of a space — it sounds more specific than 'in' and is common when contrasting interior with exterior: 'Come inside where it is warm.' 'Within' is more formal and often used for abstract or figurative boundaries, such as 'within the rules' or 'within walking distance.' In everyday conversation, 'into' is the natural choice for describing the action of entering, 'in' for describing position, and 'inside' when the contrast with outside matters.

Common collocations

Adverbs

  • straight into
  • directly into
  • right into
  • back into
  • deep into
  • far into

Etymology

Old EnglishEnglish

The word 'into' was formed in Old English by combining the adverb/preposition 'in' with the preposition 'to.' By the late 800s, the two words had fused into a single term expressing both position (in) and direction (to). This combination gave English a precise way to describe movement from outside to a point within something — a single word that would otherwise require a longer phrase.