good day

interjection

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

good day

sentence substitute

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

Word History and Origins

Origin of good day¹

Middle English word dating back to 1175–1225

Idioms and Phrases

Also, good afternoon or evening or morning . 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 .

Example Sentences

Greens Foreign Minister Annalena Baerbock had just returned from a visit to Ukraine when she said the coalition collapse was "not a good day for Germany and not a good day for Europe".

From BBC

“Sure, sure. Well, I — January 6 was was was was not a good day in this country, to put it lightly,” Vance slowly answered.

From Salon

“Like I said,” Roberts joked, riffing from one of Ice Cube’s songs, “today was a good day.”

From Los Angeles Times

"This budget is fixing the terrible fiscal inheritance we were left by the Conservatives, but it also laying the foundations for a better future and it’s a good day for the people of Northern Ireland," he told BBC News NI.

From BBC

Cube ended his stirring solo march by performing his hit, “It Was A Good Day” before shouting, “It’s time for Dodger baseball!”

From Los Angeles Times