절벽

〔絕壁〕

1. precipice
A steep cliff with a very high face of rock.

2. being deaf; being terrible at
(figurative) A person who is deaf or has difficulty understanding others.

3. mule
(figurative) An obstinate person who wouldn't listen to others.

4. wall; pitch-black pit
(figurative) A state of total darkness where nothing is visible.