Modifier + 战
战 (zhàn) means "battle," "war," or "fight," and often appears as a suffix in compound nouns to describe a conflict or contest. Common examples include 法律战 (legal battle), 贸易战 (trade war), and 口水战 (war of words). It adds a sense of intensity and confrontation to the noun it modifies.
两家公司之间的价格战越来越激烈了。
Liǎng jiā gōngsī zhī jiān de jiàgé zhàn yuè lái yuè jīliè le.
The price war between the two companies is getting more and more intense.
这场贸易战对两国经济都有影响。
Zhè chǎng màoyì zhàn duì liǎng guó jīngjì dōu yǒu yǐngxiǎng.
This trade war has affected the economies of both countries.
网上那些口水战看看就好,别太当真。
Wǎng shàng nàxiē kǒushuǐ zhàn kàn kàn jiù hǎo, bié tài dàngzhēn.
Just watch those online flame wars for fun — don't take them too seriously.