嘶 sī neighing of a horse Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: [hiss] All meanings 2 sī 2 to neigh 1[hiss] 1 1 sentence for 嘶 (sī — [hiss]) 蛇发怒时发出嘶嘶声。 shé fā nù shí fā chū sīsīshēng. Snakes hiss when they're angry. Source: AI Challenger 2017