火海 huǒhǎi inferno Origin Definitions Defs Strokes Stroke Words Sentences Sents 刀山火海 dāoshānhuǒhǎi extreme danger A place or situation of extreme peril or the most difficult and hazardous conditions.上刀山，下火海 shàngdāoshān, xiàhuǒhǎi brave danger To endure extreme trials and tribulations, often risking one's life for a noble cause or out of loyalty.