Noun
A band of contrasting color or of feathers with a distinct appearance that crosses a bird's wing.
A sand bar or spit at the side of a river, bay, or harbor.
A support strut on for the wing of an airplane.
One of two shallow bars on either side of the flue of a small boiler, designed to fill the space resulting from the extreme curvature of the flue.
Source: en.wiktionary.org