ㄒㄧㄢˇxiǎnㄧㄠˋyào

  1. 地勢險阻重要地點晉書··羊祜》:險要五城。」三國演義·》:險要以為接應。」險峻

strategically situated and easy to defend, strategic location
fief inaccessibles, forteresse stratégique
unzugänglich, unnahbar, führende Position, Schlüsselposition (S)​