realm 
/ˈrɛlm/ noun
plural realms /ˈrɛlm/ noun [count] 1 : an area of activity, interest, or knowledge
▪ new discoveries in the realm of medicine ▪ in political and legal realms ▪ the realm of art/science/education ▪ A victory by the team seems within the realm of possibility. [=a victory seems possible] ▪ It's not beyond the realm of possibility [=it's not impossible] that he will return. 2 : a country that is ruled by a king or queen
▪ a peaceful realm
▪ new discoveries in the realm of medicine ▪ in political and legal realms ▪ the realm of art/science/education ▪ A victory by the team seems within the realm of possibility. [=a victory seems possible] ▪ It's not beyond the realm of possibility [=it's not impossible] that he will return.
▪ a peaceful realm
