| Sousafon | Sousaphone |
| Sousaphon | sousaphone |
| Houston | Houston |
| sozusagen | so to speak as it were quasi sort of to all intents and purposes |
| Sulfon | sulfone |
| Soufflé | soufflé |
| Soundso | so-and-so so and so such and such such-and-such |
| Soutane | cassock soutane |
| Souverän | sovereign |
| souverän | sovereign |
| Cousin | cousin |
| Busan | Busan |
| Susanna | Susanna |
| Susa | Susa |
| Susanne | Susan Suzan Susanna Susannah Suzanna Suzanne |
| zusagen | promise please |
| O-saft | orange juice |
| Megafon | bullhorn |
| Vibrafon | vibrafone |
| Saxofon | saxophone |