Pronunciation: [ˈɔːl klˈi͡ə] (IPA) 
The phrase "all clear" is often used to indicate that there is no danger or threat present. The spelling of this phrase can be explained using IPA phonetic transcription as /ɔːl/ for "all" which represents the long vowel sound of "aw", and /klɪə/ for "clear" which is a combination of the sound /kl/ for "kl" and /ɪə/ for "ear", resulting in "clear". Together, these sounds form the word "all clear" pronounced as /ɔːl klɪə/.
The term "all clear" is an idiomatic expression used to indicate that a situation is now safe and free from any potential danger or threat. It is commonly used to convey the idea that individuals can resume normal activities or that a specific area has been declared safe.
The phrase originated in military contexts, particularly during times of conflict or heightened security alert level. In this context, it was used to signify the absence of any immediate danger or the successful completion of an operation. It was often announced to troops or civilians to assure them that they could relax or proceed with their intended activities.
Outside of military use, the term has also been incorporated into everyday language. For instance, during emergencies or disaster situations, authorities may announce an "all clear," signifying that it is safe for people to return to their homes or to exit designated safe areas. Similarly, in response to security threats or bomb threats, buildings or public places may be evacuated while officials sweep the area. Once the area has been deemed safe, an "all clear" announcement is made to let people know that they can return.
Overall, "all clear" implies a state of safety and security, suggesting that any previous danger or threat has been eliminated or is no longer present. It acts as a signal for individuals to resume their normal activities or to proceed with caution.
The phrase "all clear" has its etymology rooted in the Middle English language. The word "all" comes from the Old English word "eall", which means "whole" or "entire". The word "clear" has Old English origins as well, derived from the word "claer", meaning "pure" or "bright". The combination of these two words into "all clear" emerged to convey the idea of a complete absence of obstacles, danger, or threats. It is commonly used as a signal to indicate that a particular situation is safe or that any restrictions may be lifted.
