Adon (אדון) is already a Hebrew word. It means, Lord, Sir, or Master.
You can always say "Master" (מאסטר) in Hebrew, but the right word for that is "Adon" (אדון).
We do say "Master" (מאסטר), but you can also say "Adon" (אדון).
"adon" (אדון) or "mar" (מר). Mar is more formal
Adon (אדון)Mar (מר)Mar is more formal.
sayyid / mu'allim
Mr, sir = adon (אדון)Miss, Mrs, Ms, Ma'am = gveret (גברת)
king of kings = melech ha-melachim lord of lords = adon ha-adonim
Raida Adon was born in 1972, in Acre, Israel.
Adon Smith House was created in 1850.
Dorothy Bar-Adon was born in 1907.
Dorothy Bar-Adon died in 1950.
Pessah Bar-Adon died in 1985.