proper noun
September 30th; Orange Shirt Day; a Canadian national observance first observed in 2013
Synonyms: Jour du chandail orange, Jour du t-shirt orange, Journée du t-shirt orange
Calque of English Orange Shirt Day. From the colour of the shirt worn by a survivor of the residential school system, that was forcibly removed by Christian missionaries attempting to assimilate her into the culture of Canada's settlers, and away from her Indigenous culture.