life estate vs dower

life estate and dower both are nouns.

Word	Noun	Adjective	Verb	Adverb
life estate	Yes	No	No	No
dower	Yes	No	Yes	No

As nouns, dower is a hyponym of life estate; that is, dower is a word with a more specific, narrower meaning than life estate:

life estate: (law) an estate whose duration is limited to the life of the person holding it
dower: a life estate to which a wife is entitled on the death of her husband

life estate (noun)	dower (noun)
(law) an estate whose duration is limited to the life of the person holding it	a life estate to which a wife is entitled on the death of her husband
	money or property brought by a woman to her husband at marriage

life estate (verb)	dower (verb)
	furnish with an endowment