Correct spelling for the English word "noone" is [nˈə͡ʊwɒn], [nˈəʊwɒn], [n_ˈəʊ_w_ɒ_n] (IPA phonetic alphabet).
The word "noone" is a misspelling of "noon", which refers to the middle of the day or the time when the sun is at its highest point in the sky. It can also be used more broadly to indicate "midday" or "midpoint". The etymology of the word "noon" traces back to the Old English word "non" or "nōn", which was derived from the Latin word "nona" meaning "ninth". This is because in ancient Rome, the ninth hour of daylight (around 3 pm) was considered an approximate time for midday. Over time, the meaning of "noon" shifted to simply represent midday or the middle of the day.