noun: April 25, a public holiday in Australia and New Zealand that originally commemorated the sacrifices made by members of the Australian and New Zealand Army Corps (ANZAC) who fought at Gallipoli against the Ottoman Empire during World War I, and now honours people from those countries who have served in all wars, conflicts, and peacekeeping operations.
noun: Alternative letter-case form of Anzac Day. [April 25, a public holiday in Australia and New Zealand that originally commemorated the sacrifices made by members of the Australian and New Zealand Army Corps (ANZAC) who fought at Gallipoli against the Ottoman Empire during World War I, and now honours people from those countries who have served in all wars, conflicts, and peacekeeping operations.]