manor vs acres

manor and acres both are nouns.

Word	Noun	Adjective	Verb	Adverb
manor	Yes	No	No	No
acres	Yes	No	No	No

As nouns, acres is a hypernym of manor; that is, acres is a word with a broader meaning than manor:

manor: the landed estate of a lord (including the house on it)
acres: extensive landed property (especially in the country) retained by the owner for his own use

Other hypernyms of manor include demesne, estate, land, landed estate.

manor (noun)	acres (noun)
the mansion of a lord or wealthy person	extensive landed property (especially in the country) retained by the owner for his own use
the landed estate of a lord (including the house on it)