One moment, please

one moment

An expression asking someone to wait patiently for a short amount of time. A: "Hello? Is anybody there?" B: "One moment! I'm just getting dressed." A: "Yes, hello. May I speak to Mrs. Robertson?" B: "One moment please. I'll see if she's available."
See also: moment, one
Farlex Dictionary of Idioms.

One moment, please.

Please wait briefly. (A polite way of acknowledging that you noticed someone's request.) John: Can you help me? Clerk: One moment, please. I will be with you shortly. Bill (answering the phone): Hello? Bob: Hello. Can I speak to Tom? Bill: One moment, please, (handing phone to Tom) It's for you. Tom: Hello, this is Tom.
See also: one, please
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • one moment
  • (be) with you in a moment
  • (be) with you in a minute
  • With you in a minute
  • bide one's time, to
  • drop in to say hello
  • Who is this?
  • dressed to kill
  • dressed to the teeth
  • wrong number
References in classic literature
"One moment, please," said the soldier, barring their way as they started to enter the gate.
The Patchwork Girl of Oz
One moment, please. Move if I hurt you, Otherwise sit still, because I don't intend to hurt you.
Michael Brother of Jerry
A pinch of salt, a bunch of onions, a little bit or a long time, "Wait a while," "One moment, please," are arbitrary measures, and one moment may last a lot longer for some than for others.
Music: It's About Time
It was still settling in when it heard the doctor say to the mother-in-law: "Just one moment, please."
The beautiful soul of Don Damian
CERDINI: One moment, please. There is a problem withthe sound.
Klaus Barbie's circus of evil