| 1. | 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. |
| 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. |