qǐ​chǐ

to open one's mouth

启齿 啟齒 qǐ//chǐ
to open one's mouth
To open one's mouth to start talking; often used when having something difficult to say or when asking for a favor from someone.
to laugh
(literary) to laugh or smile; to show one's teeth when laughing

Frequency

Movie subtitles
0.600 per million appears in 0% of films
Written text
0.476 per million

Sources