名词
1. （活动、兴趣或思想的）领域，范围
You can use realm to refer to any area of activity, interest, or thought.
2. 王国
A realm is a country that has a king or queen.
3. 可能的范围
If you say that something is not beyond the realms of possibility, you mean that it is possible.
1. a knowledge domain that you are interested in or are communicating about
e.g. it was a limited realm of discourse
here we enter the region of opinion
the realm of the occult
Synonym: region
2. the domain ruled by a king or queen
Synonym: kingdom
3. a domain in which something is dominant
e.g. the untroubled kingdom of reason
a land of make-believe
the rise of the realm of cotton in the south