ἀποκάλυψις
From LSJ
ἐπέμψατε ἀγγέλους τοῖς ἀλλήλοις ὥστε ἔγνωτε τὸν κίνδυνον → you sent messengers to one another so that you knew the danger
English (LSJ)
[κᾰ], εως, ἡ,
A uncovering, of the head, Phld.Vit.p.38J.; disclosing, of hidden springs, Plu.Aem.14: metaph., ἁμαρτίας Id.2.7of; revelation, esp. of divine mysteries, Ep.Rom.16.25, etc.; of persons, manifestation, 2 Ep.Thess.1.7, etc.; title of the Apocalypse.
German (Pape)
[Seite 305] ἡ, Enthüllung, Offenbarung, N. T.; Plut. Cat. mai. 20.