คุณนาย

Etymology
From 🇰🇲.

Noun

 * 1) a polite term of address to the wife of a public officer holding a royal letter of appointment known as, when the wife is without noble rank or title.
 * 2) a polite term of address to a woman, especially one married or of rank or authority.
 * 3)  woman of high social position or economic class.

Usage notes

 * The second sense is often translated as or compared to or  in English.
 * The second sense can be deemed impolite or offensive if used to address an unmarried woman.