Every time you mouse over for a hint (or get an answer wrong) it makes your strengthen skills a little bit less effective. If you know it means walking, try it! If you are right you might get that extra skill strengthened... if not you will still find out you were wrong and why. This also helps build some confidence in your ability to retain some of the language!
There is a sense in English of something "walking" in that other people will take (steal) a tool/object/item that is valuable.
If I were doing some repair work with other people around, and a friend was with me, I might say to them, 'Be careful when you use that tool and put it down. Make sure you pay attention to where it is. It's a really expensive one. Such things like to walk."
Can 'marcher' be used in that sense? Or is there a phrase for that kind of meaning?