Origin of hangul
Consonant letters as outlines of speech organs
Columns: 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