海誓山盟 hǎishìshānméng to pledge undying love Origin Definitions Defs Strokes Stroke Words Sentences Sents 海 hǎi noun sea ocean or sea; large bodies of water including salt lakes or large inland lakes誓 shì noun vow (bound form) an oath or a solemn vow; a pledge made to others山 shān noun mountain mountain; hill; range盟 méng oath (bound form) an oath or solemn pledge; to swear or vow