| zào | black |
| 皂 | soap black |
| 皂化 | saponification; saponifying; saponify |
| 皂化作用 | saponif; sapon; saponification |
| 皂化值 | saponification number; saponification value; SN |
| 皂化剂 | saponifiers; saponification agents |
| 皂性 | nature of soap |
| 皂洗机 | soaper |
| 皂片 | soap flakes; soap chip; soap flake; soapflakes |
| 皂白 | black and write; right and wrong |
| 皂白不分 | not to distinguish black from white; not to tell right from wrong |
| 皂石 | soapstone |
| 皂矾 | green vitriol (ferrous sulfate FeSO4:7H2O) |
| 皂碱 | soap same as 肥皂 |
| 皂素 | saponin |
| 皂荚 | Chinese honey locust (Gleditsia sinensis) |
| 皂荚树 | Chinese honey locust (Gleditsia sinensis) |
| 皂质乳液 | soap emulsion |