spread one's wings

:  to open or expand over a larger area

:  to stretch out :  extend

:  to distribute over an area

:  the act or process of spreading

:  extent of spreading

:  something spread out: such as

:  one of the movable feathered or membranous paired appendages by means of which a bird, bat, or insect is able to fly

:  such an appendage even though rudimentary if possessed by an animal belonging to a group characterized by the power of flight

:  any of various anatomical structures (as of a flying fish or flying lemur) providing means of limited flight

:  to fit with wings

:  to enable to fly or move swiftly

:  to traverse with or as if with wings