Definition of declare war
: to officially decide to fight or go to war
Congress has the power to declare war on/against other countries.
—often used figuratively The state has declared war on illiteracy.
Learn More About declare war
Statistics for declare war
Look-up Popularity
Cite this Entry
“Declare war.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/declare%20war. Accessed 23 Jan. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Name that Thing: Flower Edition
-
- Name that flower
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share declare war