1. An act or instance of filling.
2. Something used to fill a space, cavity, or container: a gold filling in a tooth.
3. An edible mixture used to fill pastries, sandwiches, or cakes. See Note at frosting.
4. The horizontal threads that cross the warp in weaving; weft.
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.