v. in·ter·changed, in·ter·chang·ing, in·ter·chang·es
1. To switch each of (two things) into the place of the other.
2. To give and receive mutually; exchange.
3. To cause to succeed each other in a series or pattern; alternate: interchanged gold and silver beads in the bracelet.
1. To change places with each other.
2. To succeed each other; alternate.
1. The act or process of interchanging.
2. A highway intersection that employs ramps and overpasses or underpasses to permit traffic to move freely from one road to another without crossing another line of traffic.
[Middle English enterchaungen, from Old French entrechangier, to change : entre-, between (from Latin inter-; see INTER-) + changier, to change; see CHANGE.]
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.