| Zhuyin | ㄦ |
| Origin | From 儿, the bottom portion of 兒 ér used as a cursive and simplified form |
| IPA | aɚ |
| Pinyin | er |
| Wade-Giles | êrh |
| Examples | 而 érㄦˊ |
| Audio | |
| Position | final |
| Tags |
| Zhuyin | ˊ |
| Tone number | 2 |
| Tone name | yang level |
| Pinyin | ◌́ |
| Tone letter | ˧ |
| Examples | |
| Audio | |
| Position | right |
| Tags |
| Zhuyin | ㄥ |
| Origin | From 𠃋, archaic form of 肱 gōng |
| IPA | əŋ |
| Pinyin | eng |
| Wade-Giles | êng |
| Examples | 生 shēngㄕㄥ |
| Audio | |
| Position | final |
| Tags |