| Prefix with sexual | 18 |
| Prefix with ship or slip | 24 |
| Prefix with shipman | 19 |
| Prefix with shock or treatment | 30 |
| Prefix with sked or skid | 24 |
| Prefix with skeleton | 20 |
| Prefix with skeleton or plasm | 29 |
| Prefix with skeleton or sphere | 30 |
| Prefix with skeleton or spore | 29 |
| Prefix with skeleton or thermal | 31 |
| Prefix with skeleton, scope or spore | 36 |
| Prefix with skid | 16 |
| Prefix with skiing or sailing | 29 |
| Prefix with skirt or series | 27 |
| Prefix with slavery | 19 |
| Prefix with smoker | 18 |
| Prefix with social or trust | 27 |
| Prefix with sodium | 18 |
| Prefix with soft or sweet | 25 |
| Prefix with sol | 15 |
| Prefix with sol and stat | 24 |
| Prefix with sol or space | 24 |
| Prefix with sol or stat | 23 |
| Prefix with sonic or violet | 27 |
| Prefix with sound | 17 |
| Prefix with space | 17 |
| Prefix with space or café | 28 |
| Prefix with space or dynamic | 28 |
| Prefix with space or naut | 25 |
| Prefix with space or stat | 25 |
| Prefix with speak that's, like, totally tubular | 51 |
| Prefix with species | 19 |
| Prefix with sphere | 18 |
| Prefix with sphere and politics | 31 |
| Prefix with sphere and tourism | 30 |
| Prefix with sphere or disaster | 30 |
| Prefix with sphere or lateral | 29 |
| Prefix with sphere or skeleton | 30 |
| Prefix with sphere or spore | 27 |
| Prefix with sphere or stich | 27 |
| Prefix with sphere or system | 28 |
| Prefix with spherical | 21 |
| Prefix with spore | 17 |
| Prefix with spore or sphere | 27 |
| Prefix with STANdard | 20 |
| Prefix with star or bucks | 25 |
| Prefix with starter | 19 |
| Prefix with stasis | 18 |
| Prefix with stat | 16 |
| Prefix with state | 17 |
| Prefix with state or act | 24 |
| Prefix with state or angle | 26 |
| Prefix with state or change | 27 |
| Prefix with state or county | 27 |
| Prefix with state or glycerides | 31 |
| Prefix with state or pod | 24 |
| Prefix with state or sect | 25 |
| Prefix with state or tone | 25 |
| Prefix with static | 18 |
| Prefix with stellar | 19 |
| Prefix with stick or stop | 25 |
| Prefix with stick or violent | 28 |
| Prefix with stop or stick | 25 |
| Prefix with store | 17 |
| Prefix with structural | 22 |
| Prefix with structure | 21 |
| Prefix with style or spore | 26 |
| Prefix with suction | 19 |
| Prefix with suggestion | 22 |
| Prefix with summer and winter | 29 |
| Prefix with suppose | 19 |
| Prefix with suppose and signify | 31 |
| Prefix with suppressive | 23 |
| Prefix with surgeon | 19 |
| Prefix with surgery | 19 |
| Prefix with surgery or transmitter | 34 |
| Prefix with sweet | 17 |
| Prefix with syllabic | 20 |
| Prefix with syllable or graph | 29 |
| Prefix with system | 18 |
| Prefix with system or sphere | 28 |
| Prefix with tank | 16 |
| Prefix with tank or trust | 25 |
| Prefix with tape or type | 24 |
| Prefix with tard or form | 24 |
| Prefix with tarsal | 18 |
| Prefix with task | 16 |
| Prefix with task or grain | 25 |
| Prefix with tasse | 17 |
| Prefix with tax | 15 |
| Prefix with technics | 20 |
| Prefix with technology | 22 |
| Prefix with teen | 16 |
| Prefix with term or life | 24 |
| Prefix with term or town | 24 |
| Prefix with term or way | 23 |
| Prefix with terrorism | 21 |
| Prefix with terrorist | 21 |
| Prefix with test | 16 |
| Prefix with tetracycline | 24 |