希世之珍 xīshìzhīzhēn rare treasure Origin Definitions Defs Strokes Stroke Words Sentences Sents 希世 xīshì rare (literary) extremely rare in the world; also written as 稀世 xīshì之 zhī particle [possessive] Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.珍 zhēn nounproper noun treasure (bound form) a precious thing; treasure; a culinary delicacy