freehold vs tenure

freehold and tenure both are nouns.

Word	Noun	Adjective	Verb	Adverb
freehold	Yes	No	No	No
tenure	Yes	No	Yes	No

As nouns, tenure is a hypernym of freehold; that is, tenure is a word with a broader meaning than freehold:

freehold: tenure by which land is held in fee simple or for life
tenure: the right to hold property; part of an ancient hierarchical system of holding lands

Other hypernyms of freehold include land tenure.

freehold (noun)	tenure (noun)
tenure by which land is held in fee simple or for life	the right to hold property; part of an ancient hierarchical system of holding lands
an estate held in fee simple or for life	the term during which some position is held

freehold (verb)	tenure (verb)
	give life-time employment to