Vocabulary What does 蚕糸 (さんし, sanshi) mean? 蚕糸 (さんし, sanshi) means silk thread; silk yarn. Quick factsReadingさんしRomajisanshiPart of speechnoun 蚕糸さんしsanshisilk thread; silk yarn1noun silk thread; silk yarnKanji in this word蚕silkworm糸thread