輔車唇歯 ほしゃしんし Meanings Noun mutual dependence See also: 唇歯輔車 (しんしほしゃ). Kanji 輔 help. Read as ホ. 車 car. Read as シャ. 唇 lip. Read as シン. 歯 tooth. Read as シ. Jinuma: Japanese Dictionary · Word lists