realm
//rɛlm//
Noun
realmSingular
realmsPlural
1
A kingdom; the territory ruled by a king or queen
The king ruled over a vast realm that stretched from the mountains to the sea.
2
A field, domain, or sphere of activity, interest, or knowledge
This discovery opens up new possibilities in the realm of medical science.
3
An area or range of something; a region or domain
This discovery opens up new possibilities in the realm of medical science.