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open day

British

noun

Also called: at-home. US and Canadian name: open house. an occasion on which an institution, such as a school, is open for inspection by the public

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The practice said it has seen 2,591 NHS patients since it held an open day in September, and has only offered 108 hygienist appointments since then.

From BBC • Jan. 2, 2026

Pimhill Barn is hosting an open day on Sunday for prospective grooms and brides, who want to have a look around.

From BBC • Oct. 7, 2025

The centre will be holding an open day on 10 October.

From BBC • Oct. 2, 2025

Runnymede St Edwards Primary School in West Derby has been using AI for three years and hosted an open day for other schools.

From BBC • Oct. 9, 2024

These programs open windows on a computer screen that stay open day and night.

From "Geeks: How Two Lost Boys Rode the Internet Out of Idaho" by Jon Katz

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023