Save Type Surname (from nickname) Usage English Pronounced Pron. /ˈfɔs.təɹ/ [key·simplify] Meaning & History Nickname given to a person who was a foster child or foster parent. Related NamesDetails Given Name DescendantFoster(English) Same SpellingFoster 1, Foster 2, Foster 3 Categories child meaning, drummers, English adjectives, English nouns, English verbs, family, word names