1. "Touché" as an interjection
This is the most common use of "touche" in English. It means "You got me!" or "Good point!" It's used to acknowledge a witty remark, a clever argument, or a successful attack in a playful duel.
2. "Touché" as a noun
This usage is less common than the interjection, but it still exists. "Touché" can refer to the point scored in a fencing match.
3. "Touché" as a verb
While not as common as the other uses, "touche" can be used as a verb meaning "to touch". However, it's generally considered more formal and is more likely to be used in a literary context.
Overall, "touche" in English most often signifies a moment of playful acknowledgment, a clever comeback, or a successful move in a friendly competition.