into

preposition

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.

10.

Informal. interested or absorbed in, especially obsessively: She's into yoga and gardening.

11.

Slang. in debt to: I'm into him for ten dollars.

adjective

12.

Mathematics. pertaining 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 ) = x ² for every integer.

00:10

Into is always a great word to know.

So is ninnyhammer. Does it mean:

a fool or simpleton; ninny.

the offspring of a zebra and a donkey.

LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...

Origin:
before 1000; Middle English, Old English; see in, to

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To Into

Collins

World English Dictionary

into (ˈɪntuː, (unstressed) ˈɪntə)

—*prep*
1.	to the interior or inner parts of: to look into a case
2.	to the middle or midst of so as to be surrounded by: into the water; into the bushes
3.	against; up against: he drove into a wall
4.	used to indicate the result of a transformation or change: he changed into a monster
5.	maths used to indicate a dividend: three into six is two
6.	informal interested or enthusiastically involved in: I'm really into Freud these days

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

into

O.E. into, originally in to. To be into something, "be intensely involved in," first recorded 1969 in Amer.Eng. The word is a late O.E. development to replace the fading dative case inflections that formerly distinguished, for instance, "in the house" from "into the house."

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Idioms & Phrases

into

In addition to the idioms beginning with into, also see be into.