关键
Pinyin: guān jiàn
key; crucial
Example sentence
态度是关键。
Tàidù shì guānjiàn.
Attitude is the key.
What 关键 means
关键 (guān jiàn) is a Chinese word meaning “key; crucial”. It belongs to the Describing Words topic and appears at HSK 4, so it is one of the words worth learning early when you study Chinese.