potash(pot ash: the water-soluble part of the ash formed by burning plant material; used for making soap and glass and as a fertilizer) noun [UK: ˈpɒ.tæʃ] [US: ˈpɑː.ˌtæʃ]
potassubstantief {f}
potassium(the chemical element) noun [UK: pə.ˈtæ.sɪəm] [US: pə.ˈtæ.siəm]