This is the 12065th most frequent Korean word.
높다
"높다" means "to be high."
높다 describes the physical elevation of the mountain.
산은 정말 높다.
The mountain is really high.
높다 is used to signify high quality or standard in a metaphorical sense.
그 사람은 존경받을만큼 품위가 높다.
That person has notably high dignity.
높다 indicates a large numerical value or rate.