钢口儿 gāngkour sharpness Origin Definitions Defs Strokes Stroke Words Sentences Sents 钢 鋼 gāng noun steel steel; an alloy of iron and carbon that is tougher than cast iron and harder than wrought iron口儿 口兒 kǒur opening The place where the inside and outside of something meet, such as an entrance or doorway.