Step 1: SUCCESS! With the key '肃' you have just found 2 Chinese characters! They are . TOO MUCH? Go on! Click another black key from your Chinese character — or tap 'S' to get the current result (肃)
S

Tap the next key above! Or explore the meaning of Chinese characters that have been just found (long Chinese words with the characters — or click their pinyin):
 

XIAO4
to hiss, to whistle

SU4
Gansu, respectful