flag day
Definition from Wiktionary, the free dictionary
See also Flag Day
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English [edit]
Noun [edit]
- (UK, Ireland) A day on which a registered charity raises money, usually by selling small lapel flags.
- (software) A day designated for changing to an incompatible system.
- (software) A change which is neither forward nor backward compatible.
Translations [edit]
officially designated day
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