| Take out the launchers as quickly as possible, then wipe out the remaining soldiers and sentinels with your mutant powers. |
| Those trees used to stand like sentinels on either side of the path leading to the bandstand from the Glass House. |
| The Blackcrest Mountains were very tall here, and they stood like foreboding sentinels with their black peaks protruding like worn teeth. |
| The day lilies in the ditch north of Five Corners are orange summer sentinels, fully at attention. |
| Men who have merited this last distinction are to be suffered to pass all guards and sentinels which officers are permitted to do. |
| Rousing slumbering T cells is the job of dendritic cells, the sentinels of the immune system. |
