Definition of "saltire"

But the World Cup winning veteran's left boot was awry again, the attempt sliced horribly wide of the left upright, and the saltires were waving aloft again a moment later when a long pass in the England midfield was picked off to almost offer up a breakaway try.

2011 October 1, Tom Fordyce, “Rugby World Cup 2011: England 16 – 12 Scotland”, in BBC Sport‎, archived from the original on 26 September 2016

It was early August. In the Borders, there were few signs yet of a campaign that could take Scotland out of the United Kingdom. A large Y-E-S hung in separate letters from a tree on the road from Coldstream to Kelso. There wasn't a N-O to match it, but Kelso town hall flew both the saltire and the union jack.

2014 September 16, Ian Jack, “Is this the end of Britishness?”, in The Guardian‎, London, archived from the original on 18 April 2016