| Astroide | astroid |
| Asteroid | asteroid |
| Androide | android |
| Astrozyt | astrocyte |
| Astrologe | astrologer astrologist |
| Astronom | astronomer |
| Astronym | astronym |
| Gastropode | gastropod |
| astrein | cool |
| astro- | astr- |
| Streife | patrol |
| Strike | strike |
| Strobe | white pine |
| Strophe | stanza stave |
| Strosse | stope |
| Zentroide | centroid |
| Android | android |
| Droide | droid |
| Steroid | steroid |
| Getreide | cereal grain |