1. To the inside or interior of: went into the house.
a. To the activity or occupation of: recent college graduates who go into banking.
b. To the condition, state, or form of: dishes breaking into pieces; changed into a butterfly.
c. So as to be in or be included in: parties entering into an agreement; wrote a new character into the play.
d. Informal Interested in or involved with: They are into vegetarianism.
3. To a point within the limits of a period of time or extent of space: well into the week.
4. In the direction of; toward: looked into the distance; pointed into the sky.
5. Against: crashed into a tree.
6. As a divisor of: The number 3 goes into 9 three times.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.