This is the 9199th most frequent Japanese word.
独壇場
A situation or field where someone excels or dominates exclusively.
Here, '独壇場' means the highlight or the best aspect, emphasizing exclusivity and dominance.
彼の演技はこの映画の独壇場と言える。
His performance can be said to be the highlight of this movie.
In this usage, '独壇場' indicates an area where one's skill is unmatched or dominant, showing her expertise.
彼女の料理の腕前は家庭で独壇場だ。
Her cooking skills dominate in the household.
This sentence uses '独壇場' to refer to an area where specialists dominate and excel, highlighting their authority.