Watermark
- n. See Water line, 2.
- n. A mark indicating the height to which water has risen, or at which it has stood; the usual limit of high or low water.
- n. A letter, device, or the like, wrought into paper during the process of manufacture.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.