good day

American  

interjection

1. a conventional expression used at meeting or parting during the daytime.

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good day British  

1. a conventional expression of greeting or farewell used during the day

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good day Idioms  

1. Also,. Formal ways of saying “Hello” or “Goodbye.” For example, He began rather oddly by addressing the audience with “Good day,” or “Good afternoon, ladies,” said the sales clerk as we walked out. All these greetings represent an abbreviation of the now obsolete God give you a good day (afternoon, etc.), which dates from about 1200. Also see good night.

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Etymology

Origin of good day

Middle English word dating back to 1175–1225

Example Sentences

Greg Varallo, an attorney for the Tesla shareholder Richard Tornetta who brought the lawsuit in 2018, said it was a "Good day for the good guys," in an email reported by the Reuters news agency.

From BBC • Jan. 30, 2024

"Good day sir. I am Russian naval officer - please don't shoot my group on video."

From Reuters • Aug. 15, 2023

“Be careful. Bundle up. Good day to stay at home if you don’t have to go out.”

From New York Times • Jan. 29, 2022

“Respect me and my privacy as I’m trying to have a baby. Good day sir.”

From Washington Times • Jun. 27, 2017

“It’s all there, black and white, clear as crystal! You stole fizzy-lifting drinks, so you get NOTHING! You lose! Good day, sir!”

From "Marcus Vega Doesn't Speak Spanish" by Pablo Cartaya