keep the wolf from the door

:  to retain in one's possession or power

:  to refrain from granting, giving, or allowing

:  to have in control

:  the means or provisions by which one is kept

:  one that keeps or protects: such as

:  fortress, castle

:  any of several large predatory canids (genus Canis) that are active mostly at night, live and hunt in packs, and resemble the related dogs

:  gray wolf ◆Wolves have long been viewed as threats to livestock and people resulting in significant worldwide declines in their numbers and range size due to persistent eradication efforts (as by hunting, trapping, and poisoning).

:  the fur of a wolf

:  to eat greedily :  devour

:  a usually swinging or sliding barrier by which an entry is closed and opened

:  a similar part of a piece of furniture

:  doorway