You-know-who
"You-know-who" in French
qui tu sais (said to c sg)
(known and unmentioned person)
qui vous savez (formal to c sg or said to c pl)
(known and unmentioned person)
tu sais qui
(known and unmentioned person)
vous savez qui
(known and unmentioned person)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.