wa·ter·mark
ˈwȯ-tər-ˌmärk 
ˈwä-
1
: a mark indicating the height to which water has risen
2
: a marking in paper resulting from differences in thickness usually produced by pressure of a projecting design in the mold or on a processing roll and visible when the paper is held up to the light
also
: the design of or the metal pattern producing the marking
watermarked; watermarking; watermarks
Examples of watermark in a Sentence
Recent Examples on the Web
Ihar Kliashchou, Forbes.com, 17 Sep. 2025
To address concerns that viewers might be confused about what’s AI-generated and what isn’t, YouTube uses Google DeepMind’s SynthID watermarks and content labels to indicate that applicable videos were generated with AI.
—Todd Spangler, Variety, 16 Sep. 2025
New Atlas, 11 Aug. 2025
Organizations looking to watermark AI generated images may need to rethink their approach.
—IEEE Spectrum, 7 Aug. 2025
See All Example Sentences for watermark
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Noun
Some organizations are also experimenting with cryptographic watermarks and labeling for media content.
—Ihar Kliashchou, Forbes.com, 17 Sep. 2025
To address concerns that viewers might be confused about what’s AI-generated and what isn’t, YouTube uses Google DeepMind’s SynthID watermarks and content labels to indicate that applicable videos were generated with AI.
—Todd Spangler, Variety, 16 Sep. 2025
Verb
There could be new hope on the horizon, however, in the form of an authentication system that watermarks videos using fluctuations in the on-location lighting.
—New Atlas, 11 Aug. 2025
Organizations looking to watermark AI generated images may need to rethink their approach.
—IEEE Spectrum, 7 Aug. 2025
See All Example Sentences for watermark
Cite this Entry
“Watermark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watermark. Accessed 20 Sep. 2025.
Copy CitationKids Definition
watermark
1 of 2 noun
wa·ter·mark
ˈwȯt-ər-ˌmärk
ˈwät-
1
: a mark that shows the height to which water has risen
2
: a mark (as the maker's name or trademark) made in paper during manufacture and visible when the paper is held up to the light
watermark
2 of 2 verb
: to mark with a watermark
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