επ' αυτοφώρω
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
Translations
in the act
Chinese Mandarin: 現行/现行; Danish: på fersk gerning; Dutch: op heterdaad; English: in the act, red-handed, in flagrante delicto; Finnish: itse teossa; French: sur le fait; German: auf frischer Tat; Greek: επ' αυτοφώρω, με λερωμένα τα χέρια, στα πράσα; Ancient Greek: ἐπ' αὐτοφώρῳ; Norwegian: på fersk gjerning; Polish: na gorącym uczynku; Russian: на месте преступления, с поличным; Spanish: con las manos en la masa; Swedish: på bar gärning; Tagalog: huli sa akto