司会をする
解説 Definition
officiating は officiate（司会をする、式を執り行う）の現在分詞・動名詞です。結婚式や式典、試合などで進行役や審判役を務めることを表します。
Officiating is the present-participle or gerund form of officiate. It describes formally conducting a ceremony or event, or acting as the authorized referee or official in a sporting contest.
覚え方のコツ Memory Tip
原形 officiate の語末の e を落として -ing を付けた現在分詞・動名詞です。office、official と同じ「公的な務め」の発想から、式を執り行う、行事を取り仕切る、試合で審判をすることを表します。officiating at a wedding や officiating a game のように、正式な役割を担う場面で覚えましょう。
Connect officiating with office and official: all involve carrying out an assigned or formal duty. It is formed from officiate by dropping the final silent e and adding -ing. Picture someone conducting a wedding ceremony, keeping a formal program moving, or serving as the referee in a game. The exact role depends on the context: officiating at a wedding means formally conducting it, while officiating a match means applying the rules as an official. Useful patterns include be officiating at the ceremony and officiating a game.
例文
She is officiating at the ceremony today.
彼女は今日、その式典で司会をしています。
He was nervous about officiating at his friend's wedding.
彼は友人の結婚式で司会をすることに緊張していました。
The teacher is officiating at the school event and keeping the program on time.
その先生は学校行事で司会を務め、進行が時間どおりになるようにしています。
officiating の類義語・関連語
officiating の語源・成り立ち Etymology
officiatingは officiate に -ing が付いた形で、語源は中世ラテン語 officio、さらにラテン語 officium「職務・務め」です。office や official と同根で、「公の務めを果たす」が転じて「司会する・職務として取り仕切る」を表します。
Officiating is formed from officiate by removing the final e and adding -ing. Officiate came through Medieval Latin forms related to Latin officium, meaning “service, duty, or official function.” Office and official belong to the same word family. The central historical idea is performing an assigned duty, which developed into the modern senses of formally conducting a ceremony or serving as an official in a contest.
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