invisible ink
noun
: ink that can only be seen when it is specially treated in some way
a message written in invisible ink
Examples of invisible ink in a Sentence
Recent Examples on the Web
Roya had hosted a party the night before, which didn’t have a metal detector but did use invisible ink stamps to show who had been admitted.
—
Sophie Brookover, Vulture, 31 Oct. 2024
America’s first spies spent the Revolutionary War using ciphers, clandestine courier networks, and invisible ink to correspond with each other and their foreign allies.
—William J. Burns, Foreign Affairs, 30 Jan. 2024
President Obama wrongly drew a red line with invisible ink.
—Laurence Needleman, WSJ, 21 Nov. 2023
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Sophie Brookover, Vulture, 31 Oct. 2024
America’s first spies spent the Revolutionary War using ciphers, clandestine courier networks, and invisible ink to correspond with each other and their foreign allies.
—William J. Burns, Foreign Affairs, 30 Jan. 2024
President Obama wrongly drew a red line with invisible ink.
—Laurence Needleman, WSJ, 21 Nov. 2023
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Cite this Entry
“Invisible ink.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invisible%20ink. Accessed 17 Nov. 2024.
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