1. One that removes tops or puts tops on.
2. Something that goes on top of something else: a mattress topper; cake topper.
3. See truck cap.
a. A short, lightweight coat.
b. Informal A top hat.
a. One that is exceedingly or surpassingly good of its kind.
b. Informal Something, such as a witticism, that surpasses all that has gone before.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.