lotusland vs realm

lotusland and realm both are nouns.

Word	Noun	Adjective	Verb	Adverb
lotusland	Yes	No	No	No
realm	Yes	No	No	No

As nouns, realm is a hypernym of lotusland; that is, realm is a word with a broader meaning than lotusland:

Other hypernyms of lotusland include kingdom, land.

lotusland (noun)	realm (noun)
an idyllic realm of contentment and self-indulgence	a knowledge domain that you are interested in or are communicating about
	the domain ruled by a king or queen
	a domain in which something is dominant