哇 Strokes Write it Listen 哇 wa replaces 啊 when following the vowel "u" or "ao" HSK 6 9 strokes Radical 口 Sound + meaning 1 word Built from口meaningkǒumouth; entrance, gate, opening圭soundguījade tablet How it works口 hints at the meaning (mouth), and 圭 guī hints at the sound.