Dictionary.com
Thesaurus.com

state of war

American  

noun

  1. a condition marked by armed conflict between or among states, existing whether or not war has been declared formally by any of the belligerents.

  2. a legal condition initiated and concluded by formal declaration, and not necessarily involving armed conflict.

  3. the duration of such a condition.


state of war British  

noun

  1. a period of armed conflict between states, regardless of whether or not war has been officially declared

  2. a legal condition begun by a declaration of war and ended formally, during which the rules of international law applicable to warfare may be invoked

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of state of war

First recorded in 1945–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The neighboring states "declare their intent to conclusively end the conflict, address its underlying causes, and to therewith formally conclude any state of war between them."

From Barron's Jun. 27, 2026

This is a nation in which military service is near universal for both sexes and a state of war has been continuous for 2½ years.

From The Wall Street Journal Apr. 7, 2026

The assembly is expected to swiftly elect the next supreme leader, especially with Iran being in a state of war.

From Salon Mar. 6, 2026

With large parts of Myanmar under opposition control and in a state of war, holding this election is a formidable logistical exercise for the country's military rulers.

From BBC Aug. 18, 2025

In other words it is necessary that he should have the mentality appropriate to a state of war.

From "1984" by George Orwell

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training