Main Entry: in·to

Pronunciation: \ˈin-(ˌ)tü, -tə\

Function: preposition

Etymology: Middle English, from Old English intō, from ²in + tō to

Date: before 12th century

1 —used as a function word to indicate entry, introduction, insertion, superposition, or inclusion <came into the house> <enter into an alliance>
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 —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 : in the direction of <looking into the sun>
5 : to a position of contact with : against <ran into a wall>
6 —used as a function word to indicate the dividend in division <dividing 3 into 6 gives 2>