A canal.
The theory, practice and technology of charting a course for a ship, aircraft or spaceship or (colloquially) road vehicle.
Traffic or travel by vessel, especially commercial shipping.
The act of lining a canal with puddle to make it watertight.
The action of forming a puddle.
The first true industrial process to produce steel from pig iron.
A group of mallards (ducks).
A behaviour in which animals like butterflies seek out moist substances to obtain nutrients.
The process of working clay, loam, pulverized ore, etc., with water, to render it compact, or impervious to liquids.