The act of expressing one's thoughts, feelings, or intentions—by words or actions.
面接では自分の意思表示をはっきり伝えることが大切だ。
In interviews, it's important to clearly express your intentions.
プロジェクトに参加したくないなら、早めに意思表示をしてください。
If you don't want to join the project, please state that as soon as possible.
彼女は沈黙を破って意思表示をした。
She broke the silence and expressed her intention.
In law: a declaration of intent—an act or statement by which a party clearly expresses their legal will (e.g., in contracts, wills).
契約成立にはお互いの意思表示が必要だ。
Mutual declarations of intent are necessary for a contract to be formed.
被告の意思表示に瑕疵があったとして、契約は無効とされた。
Because the defendant's declaration of intent was flawed, the contract was declared void.