「痕」的意思是东西留下的印子，比如伤口好了以后留下的痕，或者地上的水痕。

"痕" means a mark left by something, such as a scar left after a wound heals or a water mark on the ground.

这个字常常和别的字一起用，比如「痕迹」和「伤痕」。

This character is often used together with other characters, such as in "痕迹" (trace) and "伤痕" (scar).