into

[ in-too; unstressed in-too, -tuh ]
/ ˈɪn tu; unstressed ˈɪn tʊ, -tə /

preposition

adjective

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) = x2 for every integer.

Origin of into

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

British Dictionary definitions for into

into
/ (ˈɪntuː, unstressed ˈɪntə) /

preposition

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
maths used to indicate a dividend three into six is two
informal interested or enthusiastically involved in I'm really into Freud these days

Idioms and Phrases with into

into