Questions & Answers about האדון מחכה בחוץ.
אדון can mean different things depending on context.
In this sentence, האדון most naturally means the gentleman or the man/sir in a formal way.
Other possible uses of אדון:
- before a last name: Mr.
- אדון כהן = Mr. Cohen
- in older, literary, or hierarchical contexts: master or lord
So here it is probably just a polite/formal way to refer to a man.
It is understandable, but it sounds somewhat formal, service-oriented, or a little old-fashioned depending on context.
In everyday speech, Israelis might more often say:
- האיש מחכה בחוץ = the man is waiting outside
- הבחור מחכה בחוץ = the guy is waiting outside
- מישהו מחכה בחוץ = someone is waiting outside
So the sentence is correct, but האדון is not the most casual everyday choice.