1. The best apps will relay important bits of information without us even needing to touch our wrists.

2. With Tor, each site you visit is sent though a relay of volunteer servers.

3. SMS relay eliminates the problem of your phone being out of reach.

4. The survivor was told to relay the experience to others.

5. We as a Mars program, of course, count on all of our orbiter assets to relay data for the rovers.

6. They then relay back the information.