プログレッシブ和英中辞典(第4版)の解説
いし【意思】
〔考え〕a mind ((to do))；〔心づもり〕(an) intention ((of; to do))；〔望み〕(a) wish ((for; to do; that))
意思が通じる［疎通する］
come to an understanding／understand each other
意思を変える
change one's mind
私は教師になる意思は毛頭ない
I do not have the slightest intention of becoming a teacher.
両者の意思の疎通を欠いたためその計画は挫折した
Through a lack of understanding between the two parties, the project fell through.
彼は両親の意思に背いて結婚した
He married against his parents' wishes.
彼は他人の意思に従ってばかりいる
He always defers to other people's wishes.／He always bows to the wishes of others.／〔言いなりになる〕He is always at the beck and call of other people.
意思表示
an expression [indication] of one's intentions；〔法律用語〕a declaration of intent
意思表示する indicate [express; declare] one's intentions