1. The act or process of preparing: the preparation of dinner for six people.
2. The state of having been made ready beforehand; readiness.
3. often preparations An action done to prepare for something, especially for an event or undertaking: preparations for the opening of the new school.
4. A substance, such as a medicine, prepared for a particular purpose.
a. The anticipation of a dissonant tone by means of its introduction as a consonant tone in the preceding chord.
b. The dissonant tone so anticipated.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.