war

US /wɔːr/
UK /wɔːr/
"war" picture
1.

a state of armed conflict between different countries or different groups within a country

:
The country has been ravaged by civil war for years.
They declared war on the neighboring nation.
2.

a sustained campaign against an undesirable situation or practice

:
The government launched a war on drugs.
There's an ongoing war against poverty.
1.

engage in a war

:
The two nations have been warring for decades.
They continue to war over territorial disputes.