英文： virtual nuclear-weapon State
法文： État nucléaire militaire virtuel
俄文：фактическое ядерное государство
簡體中文：虚拟核武器国家
阿拉伯文：دولة شبه حائزة للأسلحة النووية
西班牙文： Estado virtualmente poseedor de armas nucleares

The phrase is used to refer to governmental entities that have mastered the basics of nuclear power and of the fuel cycle, and could, if they wanted, quickly cross the line to make nuclear arms, probably in a matter or months. Among those entities, experts have listed: Japan, Germany, Belgium, Canada, Brazil, Kazakhstan, Taiwan Province of China, along with a dozen others.