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単独行為 (たんどくこうい, tandokukoui) Japanese meaning | Kotomora
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A will is one type of unilateral act.
Cancellation of a contract may be done by a unilateral act.
Kanji 独 single, alone, spontaneously 行 going, journey, carry out Related words 契けい 約やく 契約 (contract) requires agreement between two or more parties, whereas 単独行為 is an act by a single party that produces legal effects without the need for consent.
法ほう 律りつ 行こう 為い 法律行為 (juristic act) is a broader category that includes both unilateral acts (単独行為) and bilateral acts (契約).
Etymology Compound of 単独 (tandoku, 'single, sole') and 行為 (kōi, 'act, deed'). The term is a direct translation of the Western legal concept of 'unilateral act'.
