good day

interjection

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

good day

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,. 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

Speaking to reporters late on Sunday, Rubio said the negotiating teams in Geneva had had a "very good day".

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"The way in which we bowled yesterday was phenomenal. A lot happened on day one, a good day for the bowlers," he said.

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But she felt deeply that “a bad day here was better than a good day in Boston.”

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But she felt deeply that “a bad day here was better than a good day in Boston.”

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On a good day, one might find a colorful plastic top that spins; on a great day, the rare and much-coveted secret decoder ring.

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