merger
/ˈmɜːdʒə(r)/noun
1- a combination of two things, especially companies, into one（尤指公司）合并：
a merger between two supermarket chains
两家连锁超市的合并
mass noun local companies ripe for merger or acquisition.合并或兼并条件成熟的地方公司。
1.1
- mass noun Law the merging of one estate or title in another【律】兼并。
词源
early 18th cent.: from Anglo-Norman French merger (verb used as a noun)： see MERGE.