Origin of hangul Consonant letters as outlines of speech organs The hangul consonant series and the iconicity of their shapes

| Articulatory_class | Non_stop | Plain_stop | Aspirated_stop | _Muddy_voice |
|---|---|---|---|---|
| 牙音 molar sounds | (ㆁ) | ㄱ | ㅋ | ㄲ |
| 舌音 tongue sounds | ㄴ | ㄷ | ㅌ | ㄸ |
| 脣音 lip sounds | ㅁ | ㅂ | ㅍ | ㅃ |
| 齒音 incisor sounds | ㅅ | ㅈ | ㅊ | ㅉ, ㅆ |
| 喉音 throat sounds | ㅇ | ㆆ | ㅎ | ᅇ, ㆅ |
| 輕脣音 light lip sounds | ㅱ | ㅸ | ㆄ | ㅹ |