先せん約やく

noun

prior engagement; previous appointment

Refers to a social or business appointment made earlier, often used when declining a new invitation.

• あいにく先せん約やくがありまして、今こん回かいは参さん加かできません。

  Unfortunately I have a prior engagement and cannot attend this time.

noun

prior agreement; previous promise; previous contract

Refers to a formal or informal agreement, promise, or contract made earlier. Often used in business or legal contexts.