Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


preposition in·to \ˈin-(ˌ)tü, -tə\

Simple Definition of into

  • : to or toward the inside of (something)

  • : in the direction of (something)

  • —used to describe hitting or touching something or someone

Full Definition of into

  1. 1 —used as a function word to indicate entry, introduction, insertion, superposition, or inclusion <came into the house> <enter into an alliance>

  2. 2 a :  to the state, condition, or form of <got into trouble> b :  to the occupation, action, or possession of <go into farming> c :  involved with or interested in <into hard drugs> <into Latin epigrammatists>

  3. 3 —used as a function word to indicate a period of time or an extent of space part of which is passed or occupied <far into the night>

  4. 4 :  in the direction of <looking into the sun>

  5. 5 :  to a position of contact with :  against <ran into a wall>

  6. 6 —used as a function word to indicate the dividend in division <dividing 3 into 6 gives 2>

Examples of into

  1. She came into the room.

  2. a medicine injected into the bloodstream

  3. Please put the bowl into the sink.

  4. They were heading into town.

  5. He jumped into the pool.

  6. She was just staring into space.

Origin of into

Middle English, from Old English intō, from 2in + to

First Known Use: before 12th century

INTO Defined for Kids


preposition in·to \ˈin-tə, -tü\

Definition of into

  1. 1 :  to the inside of <I ran into the house.>

  2. 2 :  to the state, condition, position, or form of <She got into mischief.> <Cut the cake into pieces.> <It slipped into place.>

  3. 3 :  so as to hit :  against <He ran into the wall.>

  4. 4 :  in the direction of <Don't look into the sun.>

  5. 5 —used to indicate division <Two goes into six three times.>

Learn More about into

Seen and Heard

What made you want to look up into? Please tell us where you read or heard it (including the quote, if possible).


February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!


Take a 3-minute break and test your skills!


How much does a batman (the Turkish unit of measurement) weigh?

16.96 pounds 2.2 pounds 196.5 pounds 100 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.


Test Your Knowledge - and learn some interesting things along the way.