cornerstone

すみ石,定礎石

cornerstone の類語

base, sine qua non, essential, foundation, crisis, the point, great point, name of the game, high point, important thing, main thing, real issue, main point, chief thing, landmark, material point, critical point, turning point, milestone, essential matter, keystone, bench mark, basis, core, meat, cardinal point, groundwork, fundamental, substantive point, salient point, the bottom line, climax, kernel, heart, issue, pivot, gist, crux, substance, essence, nub, point, gravamen, assumption, pith, first stone, foundation stone, stone, quoin, fundament, meat and potatoes, headstone, supposition, supposal

cornerstone の言い換えを探すには

cornerstone（すみ石）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。