交汇（河流），汇流，合流

1. confluence (of rivers), flowing together, joining

intransitive verb noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru

联合（指人员、团体、政党等），联盟，联合起来，合并（如交通），会合

2. joining (of people, groups, parties, etc.), union, linking up, merging (e.g. of traffic), meeting (up)

intransitive verb noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru