HSK 7-9
告知
gàozhī动
to inform; to notify
请提前告知我们到达时间。
Qǐng tí qián gào zhī wǒ men dào dá shí jiān.
Please notify us of your arrival time in advance.
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.