ع ل نʿ-l-n
(ن) عَلَنَ يَعْلُنُ عَلَانِيَةً وَعُلُوْنًاʿalana yaʿlunu ʿalāniyatan wa-ʿulūnan: to become manifest, to come into the open — the opposite of سِرّsirr (concealment).
عَلَانِيَةʿalāniyah: openly, publicly.
Form IV (ifʿāl) أَعْلَنَ يُعْلِنُ إِعْلَانًاaʿlana yuʿlinu iʿlānan: to make manifest, to proclaim. 16 times in the Quran, and تقريبًاtqryban every time in contrast with "سِرّsirr" or "إِسْرَارisrār": ﴿سِرًّا وَّعَلَانِيَةً﴾ (Al-Baqarah 2:274) and, in the context of ﴿فَإِنَّهُۥ يَعْلَمُ السِّرَّ وَأَخْفٰى﴾, ﴿ثُمَّ إِنِّيْۤ أَعْلَنْتُ لَهُمْ وَأَسْرَرْتُ لَهُمْ إِسْرَارًا﴾ (Nūḥ 71:9).