HSK 7-9
口子
kǒuzi名
hole; opening; cut; gap
树枝在他的手背划了道口子。
Shù zhī zài tā de shǒu bèi huá le dào kǒu zi.
A branch cut a gash across the back of his hand.
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.