元語言

metalanguage

surname Yuan / the Yuan or Mongol dynasty (1279-1368)

currency unit (esp. Chinese yuan) / first / original / primary / fundamental / constituent / part / era (of a reign) / meta- (prefix) / (math.) argument / variable / (Tw) (geology) eon

dialect / language / speech

to tell to

language / CL:門|门[men2],種|种[zhong3]

words / speech / to say / to talk

metalinguistic ability

metalinguistic awareness