engagement
engage + -ment
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noun
1. a formal agreement to get married.
〖通例単数形で〗【人との】婚約 «to»
the duration of an agreement to get married:
婚約期間
e.g. a good long engagement to give you time to be sure.
2. an arrangement to do something or go somewhere at a fixed time:
«…する/…との» (面会の)約束, (公務の)予定, 取り決め; 用事 «to do/with» ; «…との» 契約, 協約 «with»
e.g. a dinner engagement.
3. the action of engaging or being engaged:
｟かたく｠ (よりよい理解のための) «人･事などとの/…における» かかわり, ふれあい «with/in»
e.g. Britain's continued engagement in open trading
(歯車などの)かみ合わせ
e.g. the engagement of the gears.
4. a fight or battle between armed forces.
〘軍〙 交戦, 戦闘
ORIGIN
early 17th century (in the general sense ‘a legal or moral obligation’): French, from engager ‘to pledge’ (see engage).