* Informal, playful banter: "You got me there! Touché."
* Acknowledging a clever point: "You make a good point about the economy. Touché."
* Admitting defeat in an argument: "I can't argue with that. Touché."
* Responding to a witty remark: "That's a good one! Touché."
* Formal, literary use: "The playwright's sharp dialogue left the audience breathless. Touché!"
Remember: "Touché" is a French word, so it's often used in a slightly more formal or sophisticated way.