This is the 1460th most frequent Chinese word.
尖
Sharp; pointed; tip.
In this sentence, "尖" is used to describe a high-pitched or piercing quality of the voice.
她的声音非常尖。
Her voice is extremely sharp.
Here, "尖" describes the pointed geometry or shape of the mountain's peak.
那座山的顶非常尖。
The top of that mountain is very sharp.
"尖" in this context refers to the pointed design feature of the kettle's spout.