Here's a breakdown:
* Phonetic "long o" sound: This is the sound represented by the IPA symbol /oʊ/, which is similar to the "o" in "boat" or "go". Not everyone in the world speaks a language with this exact sound. Some languages have similar sounds, but they might be slightly different in pronunciation.
* "Long o" in the English alphabet: If you're referring to the "long o" sound in the English alphabet, then the answer is still "not everyone." Not every language uses the English alphabet, and those that do might have different rules for how the letter "o" is pronounced.
* "Long o" as a concept: If you're asking if everyone can perceive a "long o" sound, the answer is likely yes. Our ears are capable of distinguishing between different sounds, and most people can likely identify the "long o" sound if they've heard it before.
In short:
* Everyone has a different voice and pronunciation, and those variations can influence the exact sound of "o" they produce.
* Languages have different sounds, and not every language has the same "long o" sound as in English.
It's more accurate to say that the concept of a "long o" sound exists in many languages, but the exact pronunciation can vary widely.