law of war

noun phrase

Definition of law of war

: the code that governs or one of the rules that govern the rights and duties of belligerents in international war

First Known Use of law of war

1709, in the meaning defined above

Keep scrolling for more

Learn More about law of war

Time Traveler for law of war

Time Traveler

The first known use of law of war was in 1709

See more words from the same year

Statistics for law of war

Cite this Entry

“Law of war.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/law%20of%20war. Accessed 9 Jul. 2020.

More from Merriam-Webster on law of war

Britannica.com: Encyclopedia article about law of war

Comments on law of war

What made you want to look up law of war? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!