Orange blossom flowers from an orange tree, traditionally worn by the bride at a wedding; orange blossom may thus be taken as a symbol of marriage. The custom appears to have been introduced to Britain in the 1820s from France, where it was said to be customary for a bride to wear a crown of orange buds and blossoms.
Orange Revolution a protest campaign, including mass demonstrations, which followed the disputed results of the Ukrainian presidential election in November 2004. (A rerun of the election, held in December, reversed the result, giving the decision to the opposition leader, Viktor Yuschenko). Orange was the official colour of the opposition coalition.
oranges and lemons a children's game in which players pass under an arch formed by the joined upraised hands of two of the participants while a song beginning with the words, ‘Oranges and Lemons, say the bells of St Clements’ is chanted. (The subsequent rhymes refer to churches near or within the City of London.)
See also apples and oranges, all Lombard Street to a China orange.