In Physics words which are in common use tend to have a similar meaning to that which they have colloquially but a more exact one. Observe the following simulation:

Bearing in mind what the visual highlights as displacement, try to define it and write your definition down.

Now observe this other visual:

If your definition of displacement, when applied to this new simulation is valid WELL DONE! However, if it isn't you should revise it and write another one. In Science concepts should have a very exact definition and be valid provided that all the conditioners indicated in the definition are complied with.

If you click on the word displacement you will see a definition which may help you.