a. The waging of war against an enemy; armed conflict.
b. Military operations marked by a specific characteristic: guerrilla warfare; chemical warfare.
2. A state of disharmony or conflict; strife: constant spousal warfare in the household.
3. Acts undertaken to destroy or undermine the strength of another: political warfare.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.