HSK 7-9
惯例
guànlì名
convention; usual practice
会前互相介绍已成惯例。
Huì qián hù xiāng jiè shào yǐ chéng guàn lì.
Introducing one another before the meeting has become customary.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.