watermark

n 1 manufacturer's design in some types of paper, which can be seen when the paper is held against the light （某些种类的纸上印制的）水印. 2 mark that shows how high water (eg the tide or a river) has risen or how low it has fallen 水位标志（如潮水或河流的）.

water-softener, water-spout, water-supply, water-table, water-tight, water-tower, water-vapour, water-wheel, water-wings, watercourse, watercress, watered silk, waterfall, waterfront, watering-can, watering-place, waterless, waterlogged, Waterloo, waterman, waterproof, watershed, waterside, waterspout, watertight, waterway, waterworks, watery, watt, wattage, wattle, wattle and daub, watts, wave, wave sth. away, waveband, wavelength, waver, waverer, waveringly,