合流 ごうりゅう confluence (of rivers); merge (of traffic); conflux; junction; joining n vs adj-no union (e.g. of forces); linking up; merging; coming together n vs adj-no Intermediate ➥
交流 こうりゅう (cultural) exchange; interchange; interaction; (inter-) mingling; (social, etc.) networking; intercourse n vs alternating current; AC n vs Intermediate ➥