all-clear

noun
1
a signal (often a sound) that shows that a place or situation is no longer dangerous
هشدار رفع خطر, علامت ایمن بودن, نشانه قطع خطر, آژیر تمام خطر, اعلان تامین امنیت, پیغام پایان خطر, اعلان امنیت
2
if a doctor gives somebody the all-clear, they tell the person that he/she does not have any health problems
تایید سلامتی, اطمینان از سلامت, تایید بی‌مشکلی, اعلام سلامتی
(figurative)The building was given the all-clear following tests.
3
permission to do something
اجازه, اذن, رخصت, اجازهٔ کامل
The ship was given the all-clear to sail.