“foster” is a noun, verb and adjective with 5 meanings. Its most common meaning is: United States songwriter whose songs embody the sentiment of the South before the American Civil War (1826-1864).
foster
noun
United States songwriter whose songs embody the sentiment of the South before the American Civil War (1826-1864)
verb
promote the growth of
“Foster our children's well-being and education”
bring up under fosterage; of children
help develop, help grow
“nurture his talents”
adjective
providing or receiving nurture or parental care though not related by blood or legal ties
“foster parent”
“foster child”
Source: WordNet 3.1, Princeton University