immovable vs belongings

immovable and belongings both are nouns.

Word	Noun	Adjective	Verb	Adverb
immovable	Yes	Yes	No	No
belongings	Yes	No	No	No

As nouns, belongings is a hypernym of immovable; that is, belongings is a word with a broader meaning than immovable:

immovable: property consisting of houses and land
belongings: something owned; any tangible or intangible possession that is owned by someone

Other hypernyms of immovable include holding, property.

immovable (noun)	belongings (noun)
property consisting of houses and land	something owned; any tangible or intangible possession that is owned by someone

immovable (adjective)	belongings (adjective)
not able or intended to be moved