Denshi Jisho — Online Japanese dictionary

会合 かいごう 1: meeting; assembly;
2: (Chemistry term) association;
3: (astronomical) conjunction
Common word, Noun, Suru verb, No-adjective 
会合周期 かいごうしゅうき synodic period
Noun 
会合に臨む かいごうにのぞむ to be present at a meeting
Expression, Godan verb with mu ending 

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