realmnoun(AREA)
C2
an area of interest or activity:
Her interests are in the realm of practical politics.
an area of interest or activity:
Her interests are in the realm of practical politics.
a country ruled by a king or queen:
the defence of the realm
The matter was hotly debated in all the towns of the realm.
an area of interest or activity:
the economic/political realm
the realm of art/literature/music