Let's Learn About Touché

In fencing, touché (French pronunciation: [tuʃe]), the French word for "touched", is used to acknowledge a hit, called out by the fencer who is hit. Conversely, if a fencer concedes a hit when no hit was actually made, the fencer's adversary would say, "'pas de touché'" (French pronunciation: [pɑ də tuʃe]; English: no touch) to indicate that the hit should not be counted.

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http://en.wikipedia.org/wiki/Touch%C3%A9