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Vinony

watermark

noun

  1. faint image or device in paper that appears as various shades of lightness/darkness when viewed by transmitted light
L330337 on Wikidata ↗

Wiktionary

Pronunciation: /ˈwɔːtəmɑːk/

noun

Etymology: From water + mark.

  1. A translucent design impressed on the surface of paper and visible when the paper is held to the light.
  2. A logo superimposed on a digital image, a television broadcast, etc.
  3. A value stored in a datafile to ensure its integrity, so that if the file's contents are changed then the watermark will no longer match the contents.
  4. A default hint caption displayed in a text box prior to the user inputting any text.
  5. A mark indicating the level to which water has risen.

verb

Etymology: From water + mark.

  1. To mark paper with a watermark.
  2. To mark a datafile with a digital watermark.