開幕かいまく Common Noun Irregular Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb raising the curtain Antonym: 閉幕 (へいまく) オープン戦が終わり、いよいよ開幕だ。 The exhibition games are over and the regular season finally begins. 2 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb opening (of an event);start;beginning Antonym: 閉幕 (へいまく)