1. The act of registering: voter registration.
2. The number of persons registered; enrollment.
3. An entry in a register.
4. A document certifying an act of registering.
a. A combination of organ stops selected to be used in playing a piece.
b. The technique of selecting and adjusting organ stops.
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.