主催|しゅさいshusai[0]heiban (flat)

JLPT N1approx.Common
Definitions
  1. noun, suru verb, transitive verbsponsorship (i.e. conducting under one's auspices); promotion; organizing; organising; hosting; staging
    今日きょうのパーティーは誰だれが主催しゅさいなの?↗
    Who was in charge of today's party?
Conjugation
Dictionary form主催する(しゅさいする)
Polite (masu)主催します(しゅさいします)
Negative (nai)主催しない(しゅさいしない)
polite (masen)主催しません(しゅさいしません)
classical zu / nu主催せず・主催せぬ(しゅさいせず・しゅさいせぬ)
Past (ta)主催した(しゅさいした)
polite (mashita)主催しました(しゅさいしました)
Past negative (nakatta)主催しなかった(しゅさいしなかった)
polite (masen deshita)主催しませんでした(しゅさいしませんでした)
Te form主催して(しゅさいして)
Potential主催できる(しゅさいできる)
Passive主催される(しゅさいされる)
Causative主催させる(しゅさいさせる)
Causative passive主催させられる(しゅさいさせられる)
Conditional (ba)主催すれば(しゅさいすれば)
tara主催したら(しゅさいしたら)
Volitional主催しよう(しゅさいしよう)
polite (mashou)主催しましょう(しゅさいしましょう)
Imperative主催しろ(しゅさいしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Related開催かいさいNeutralAbout the event being held, as in 「大会を開催する」; it centers on the holding itself, while 「主催」 centers on who takes the lead in organizing.
  • Related挙行きょこうWrittenWritten/formal word for solemnly holding a ceremony; leans toward rites and formal occasions rather than ordinary events.
  • Related後援こうえんNeutralBacking or supporting an event from the sidelines, as in 「〇〇新聞社後援」; the backer is not the organizer.
  • Related肝いりきもいりNeutralMediating and strongly championing a project, as in 「首相の肝いりで始まった」; stresses the behind-the-scenes driving force.
  • Related執り行うとりおこなうFormalFormal verb for solemnly conducting a ceremony, as in 「式典を執り行う」.
  • RelatedスポンサーシップNeutralLoanword for a sponsorship relationship in which a company funds an event; leans toward commercial sponsorship.

Use 「主催」 when you are the lead organizer of an event, as in 「主催者」 or 「〇〇主催のイベント」. For the event being held say 「開催」, for supporters 「後援」, and for funding 「スポンサー」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 中心ちゅうしんとなって会合かいごうや行事ぎょうじを催もよおすこと。
Kanji in this word
English equivalents

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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