fosterage vs acculturation

fosterage and acculturation both are nouns.

Word	Noun	Adjective	Verb	Adverb
fosterage	Yes	No	No	No
acculturation	Yes	No	No	No

As nouns, acculturation is a hypernym of fosterage; that is, acculturation is a word with a broader meaning than fosterage:

fosterage: helping someone grow up to be an accepted member of the community
acculturation: the adoption of the behavior patterns of the surrounding culture

Other hypernyms of fosterage include enculturation, socialisation, socialization.

fosterage (noun)	acculturation (noun)
helping someone grow up to be an accepted member of the community	the adoption of the behavior patterns of the surrounding culture
encouragement; aiding the development of something	all the knowledge and values shared by a society
	the process of assimilating new ideas into an existing cognitive structure