We have put together a list of words that are similar to WATERMARK.

4 Alternative Words Similar to watermark

1 Line Noun      Synonym Words Like Line
2 Mark Noun      Synonym Words Like Mark
3 Marker Noun      Synonym Words Like Marker
4 Marking Noun      Synonym Words Like Marking

10 definitions of watermark

1 The mark, line, or limit of the rise or height of water, as in a well, a river, the sea, etc.; a water-line; especially, a tide-mark.
2 A faintly marked letter, figure, or design in the fabric of paper, that denotes its size or its manufacturer, usually barely noticeable except when the sheet is held against strong light.
3 To mark or stamp with water-lines: as, to water-mark paper; a.water-marked page.
4 To mark, inscribe, or embody in water-lines.
5 A translucent design impressed on the surface of paper and visible when the paper is held to the light.
6 Auxiliary data embedded in a datafile for subsequent identification and verification of the file.
7 To mark paper with a watermark.
8 To mark a datafile with a watermark.
9 a line marking the level reached by a body of water
10 a distinguishing mark impressed on paper during manufacture; visible when paper is held up to the light
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide