DONG -3

('dong'in the third tone)

There are some 21 standard Chinese characters with a 'dong' pronunciation. Sound_indicating components include: 东 (7 cases), 同 (7), 冬 (3)

懂 = to understand

This character / morpheme is commonly used as a single-character word.

看懂 = kan(4)dong(3) = to read

看 = kan(4) = to look at