to the inside of; in toward: He walked into the room. The train chugged into the station.
2.
toward or in the direction of: going into town.
3.
to a point of contact with; against: backed into a parked car.
4.
(used to indicate insertion or immersion in): plugged into the socket.
5.
(used to indicate entry, inclusion, or introduction in a place or condition): received into the church.
6.
to the state, condition, or form assumed or brought about: went into shock; lapsed into disrepair; translated into another language.
7.
to the occupation, action, possession, circumstance, or acceptance of: went into banking; coerced into complying.
8.
(used to indicate a continuing extent in time or space): lasted into the night; far into the distance.
9.
(used to indicate the number to be divided by another number): 2 into 20 equals 10.
10.
Informal. interested or absorbed in, esp. 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) = x2 for every integer.
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Audio Help [in-too; unstressed in-too, -tuh] Pronunciation Key 