This is the 221st most frequent Chinese word.
最高
"Highest" or "supreme."
In this sentence, the word "最高" is used as an adjective meaning "the highest," describing the comparative altitude of the mountain.
这座山是这个地区最高的山。
This mountain is the highest in this region.
Here, "最高" is an adverb describing the extent of the action "跳得" (jumping), indicating the highest level of performance.
他在比赛中跳得最高，赢得了金牌。
He jumped the highest in the competition and won the gold medal.
In this example, "最高" is used as an adjective describing quality, emphasizing the utmost or optimal level.