To disguise the source of (ill-gotten wealth) by various means.
To wash; to wash, and to smooth with a flatiron or mangle; to wash and iron.
A gutter (for rainwater).
A trough or channel carrying water to the wheel of a watermill.
A trough used by miners to receive powdered ore from the box where it is beaten, or for carrying water to the stamps, or other apparatus for comminuting (sorting) the ore.