Home/Pinyin chart/coucou in Mandarin cōu cóu cǒu còu The syllable cou is spelled with c plus the final ou. 401 characters use it across the tones below, ordered from most to least common. còufourth tone · falling · 5 characters Listen凑còu揍zòu腠còu辏còu湊còu ← cong Full chart cu → 50 of 401 syllables