Meaning & use
realm
A field of activity, interest, or knowledge, or a kingdom ruled by a monarch.
See it in a sentence
The discovery falls squarely within the realm of quantum physics.
The king ruled peacefully over a vast and prosperous realm for decades.
A note on using this word
Realm is often used figuratively for an area of knowledge or activity, as in 'the realm of possibility', beyond its literal royal sense.
Words with a similar meaning
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