A2 armed fighting between two or more countries or groups, or a particular example of this（国家或群体之间的）战争
a war that is fought over a long period and only ends when one side has neither the soldiers and equipment nor the determination left to continue fighting消耗战
a situation, often before a competition or battle, in which each opposing side attempts to frighten or discourage the other by making threats or by showing how strong it is神经战，心理战
C2 any situation in which there is strong competition between opposing sides or a great fight against something harmful争夺，竞争
The war has claimed thousands of lives.
The prime minister is to meet his European counterparts to discuss the war against drugs.
America declared war on Japan in 1941.
There is likely to be civil war if the region tries to secede from the south.
The number of casualties was appallingly high in both wars.