Added 9 October 2026
undercover
/ˌʌndə(ɹ)ˈkʌvə(ɹ)/ adjective
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about undercover at Wordnik → Where our words come from →
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Conducted with or marked by hidden aims or methods.
clandestine intelligence operations
Origin
From under + cover.
From Wiktionary, via Kaikki.org (CC BY-SA)