/ ˈsæltaɪə(r); NAmE ; ˈsɔːl-/ (also ˌsaltire ˈcross ) noun
1.
a cross in the shape of an X, especially on a coat of arms or a flag
2.
the Saltire the flag of Scotland, which is a white saltire on a blue background
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WORD ORIGIN
late Middle English : from Old French saultoir stirrup cord, stile, saltire, based on Latin saltare to dance.