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
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Mark your property: Use invisible ink or engrave your decorations with a unique identifier. Kurt Knutsson, Cyberguy Report, Fox News, 14 Dec. 2024 Voted the second-best city in the world by Condé Nast Traveler readers for 2024, Singapore has a few tenets written in invisible ink. Audrey Phoon, Condé Nast Traveler, 10 Dec. 2024 An invisible ink stamp from Roya’s earlier party on his right wrist? Sophie Brookover, Vulture, 31 Oct. 2024 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

Dictionary Entries Near invisible ink

Cite this Entry

“Invisible ink.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invisible%20ink. Accessed 2 Jan. 2025.

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