feoff vs landed estate

feoff and landed estate both are nouns.

Word	Noun	Adjective	Verb	Adverb
feoff	Yes	No	No	No
landed estate	Yes	No	No	No

As nouns, landed estate is a hypernym of feoff; that is, landed estate is a word with a broader meaning than feoff:

feoff: a piece of land held under the feudal system
landed estate: extensive landed property (especially in the country) retained by the owner for his own use

Other hypernyms of feoff include acres, demesne, estate, land.

feoff (noun)	landed estate (noun)
a piece of land held under the feudal system	extensive landed property (especially in the country) retained by the owner for his own use