開催[kaisai] holding a meeting
開催式[kaisaishiki] opening ceremony (of an event, show, etc.)
開催中[kaisaichuu] in session
共催[kyousai] joint sponsorship
催し[moyooshi] event

催物[moyoushimono] points of interest
催す[moyoosu] to hold (a meeting)
催淫剤[saiinzai] aphrodisiac
催合う[moyau] to co-operate (in enterprises)
催告[saikoku] notification

暗涙[anrui] silent tears
暗涙に咽ぶ[anruinimusebu] to shed silent tears
感涙[kanrui] tears of gratitude
嬉し涙[ureshinamida] happy tears
空涙[soranamida] crocodile tears

血も涙も無い[chimonamidamonai] cold-blooded
血涙[ketsurui] tears of blood
紅涙[kourui] feminine tears
催涙ガス[sairuigasu] tear gas
催涙銃[sairuijuu] tear-gas gun