瓦斯 Traditional form: 瓦斯 Pinyin (reading): wǎsī Definitions: gas (loanword) Characters: 瓦 - tile; pottery, earthenware 斯 - this, thus, such; emphatic particle; used in transliterations Traditional characters: 瓦 - tile; pottery, earthenware 斯 - this, thus, such; emphatic particle; used in transliterations