Dictionary/礎石そせきSoseki礎石 (Soseki) is a Japanese noun meaning “foundation stone, cornerstone”.Meaningsnounfoundation stone; cornerstoneKanji in 礎石礎cornerstone石stoneRelated words流石as one would expect石stone石koku宝石gem石油oil石橋stone bridge基礎foundation石炭coal化石fossil石神stone which is worshipped石垣stone wall一石二鳥killing two birds with one stone