How to Use "bark" with Example Sentences

1. He gave john some alder bark .
2. The bark is usually ground up and sold in capsules or liquid form .
3. Douglas-fir has a thick bark which protects the inner section of the tree from most fires .
4. What happens when nobody hears the watchdog bark ?
5. So far oil has been the " dog that did not bark " ; but it may yet give the global economy a nasty bite .