The spelling of the word "HAUT ESTRET" has a French origin and refers to a high strait or ridge. In IPA phonetic transcription, the pronunciation would be /o e.tʁɛt/, with the emphasis on the first syllable. The "h" is silent in French, and the "au" is pronounced as "o". The "es" is pronounced as "e", and the "tret" sounds like "tray". Knowing the phonetic transcription of a word can help to accurately pronounce and sound out any unfamiliar vocabulary.
The etymology of the word "HAUT ESTRET" seems to be unfamiliar or unclear, as it does not correspond to any well-known word or phrase. It is possible that "HAUT ESTRET" might be a proper noun or a term specific to a certain region or context that is not widely recognized. Without further information or context, it is difficult to determine the origins or meaning of the term.