noun
Polite term for a guest or visitor, typically in a home or private setting. Honorific language shows respect toward the person.
今日はお客さんが来るから、部屋をきれいにしておこう。
A guest is coming today, so let's tidy up the room.
noun
customer; client; shopper; spectator; audience; tourist; sightseer; passenger
Polite term for a customer or client in a business context, or for a spectator, audience member, tourist, or passenger. The exact meaning depends on the setting.
あの店はいつもお客さんでいっぱいだ。
That shop is always full of customers.
お客さん、何かお探しですか。
Are you looking for something, sir/ma'am?