mass noun
1- a state of armed conflict between different nations or states or different groups within a nation or state战争状态：
Japan declared war on Germany
日本对德国宣战
Iran and Iraq had been at war for six years.
伊朗和伊拉克交战了六年。
1.1
- count noun a particular armed conflict战争：
after the war, they emigrated to America.
战争结束后, 他们移民去了美国。
1.2
- a state of competition, conflict, or hostility between different people or groups竞争; 冲突; 对抗：
she was at war with her parents
她正和父母闹别扭
count noun a price war among tour operators.旅游代理商之间的价格战。
1.3
- a sustained effort to deal with or end a particular unpleasant or undesirable situation or condition斗争：
the authorities are waging war against all forms of smuggling
当局正在打击各种形式的走私活动
count noun a war on drugs.反毒品斗争。
warred, warring
no obj. engage in a war进行战争; 斗争：small states warred against each another
小国之间互相作战
figurative 〈喻〉conflicting emotions warred within her.
她在作感情斗争。
短语
go to war
- declare, begin, or see active service in a war宣战, 进入战争状态; 从军作战。
go to the wars
- archaic serve as a soldier〈古〉当兵。
have been in the wars
- informal have been hurt or injured〈非正式〉受过伤。
war clouds
- a threatening situation of instability in international relations战争阴云, 国际紧张局势：
the war clouds were looming.
战争阴云正在逼近。
war of attrition
- a prolonged war or period of conflict during which each side seeks to gradually wear out the other by a series of small-scale actions消耗战。
war of nerves
- 见NERVE.
war of words
- a prolonged debate conducted by means of the spoken or printed word唇枪舌剑。
war to end all wars
- a war, especially the First World War, regarded as making subsequent wars unnecessary结束所有战争的战争（尤指第一次世界大战）。
词源
late Old English werre, from an Anglo-Norman French variant of Old French guerre, from a Germanic base shared by WORSE.