1 [U] [C] a state of fighting between different countries or groups within countries using armies and weapons 战争(状态):
The Prime Minister announced that the country was at war.首相宣布国家处于战争状态。to declare war onanother country (= announce that a war has started)向另一国宣战When war broke out (= started), thousands of men volunteered for the army.战争爆发,数以千计的人自愿参军。a civil war(= fighting between different groups in one country)内战to go to waragainst sb与某人开战to fight a war打一场战争
2 [C,U] very aggressive competition between groups of people, companies, countries, etc (人际、公司、国家等间的)激烈竞争:
a price war among oil companies石油公司的价格战
3 [U] [sing] war (against/on sb/sth) efforts to end or get rid of sth 消灭或摆脱…的行动:
We seem to be winning the war against organized crime.我们看来正赢得这场打击有组织犯罪的斗争。