1. Possible of being followed back; trackable: After misplacing her cell phone, Judy thought it was retraceable by calling up the number using her landline.

In case the two hikers got lost, the path they took was retraceable when they used the special signs located on the trees.
2. Suitable to rewrite or redraw along existing lines: The spelling exercise book for Jill had retraceable letters for her to move her pencil along.