| Term | Definition |
| specter | ghost |
| spectrum | wavelengths of color from red to violet |
| species | kind, variety; type |
| spectacle | a public display or show |
| stereotype | standardized concept held in common by a group |
| stererophonic | having several speakers to reproduce sound realistically |
| predict | to tell in advance |
| indict | to officially accuse of a crime |
| dictate | to read aloud for another to record; to command |
| picturesque | beautiful enough for a painting |
| depict | to picture as; portray |
| surcharge | an additional character |
| surmise | to think without strong evidence; guess |
| surname | the family or last name |
| Cyclops | mythological giant with one round eye |
| cyclone | tornado |
| encyclopedia | range of human knowledge |
| hydroplane | a sea plane; to loose traction on wet roads |
| dehydrate | to remove water from |
| hydrophobia | fear of water; rabies |
| speculate | to reflect on a given subject |
| stereobate | the foundation of a stone building |
| surmount | to overcome; conquer |
| cycloid | resembling a circle |
| hydrated | chemically combined with water |