- Somniferously Adv
- Somnolently Adv
- Songfully Adv
- Sonically Adv
- Sonly Adj Adv
- Sonorously Adv
- Soon Adv
- Sooner Noun Pnoun Adv Adj
- Soonish Adv
- Soothingly Adv
- Soothly Adv
- Sootily Adv
- Sophisticatedly Adv
- Sophomorically Adv
- Soporifically Adv
- Sopping Adj Adv Noun
- Sorcerously Adv
- Sordidly Adv
- Sore Adj Noun Adv
- Sorely Adv
- Sorrily Adv
- Sorrowfully Adv
- Sorta Adv
- Sortably Adv
- Sottishly Adv
- Sotto Adv
- Sou'east Noun Adj Adv
- Soulfully Adv
- Soullessly Adv
- Sound Adj Noun Verb Adv
- Soundlessly Adv
- Soundly Adv
- Sourly Adv
- Souse Noun Verb Adv
- South Adj Noun Adv
- Southbound Adj Adv
- Southeast Adj Noun Adv Pnoun
- Southeasterly Adj Adv Noun
- Southeastward Adj Noun Adv
- Southeastwardly Adj Adv
- Southerly Adj Adv Noun
- Southernly Adj Adv
- Southward Adj Adv Noun
- Southwardly Adj Adv
- Southwest Adj Noun Adv Pnoun
- Southwesterly Adj Adv Noun
- Southwestward Adj Noun Adv
- Southwestwardly Adv
- Sovereignly Adv
- Spacely Adj Adv Pnoun
- Spaceward Adv Adj
- Spaciously Adv
- Spang Adv Noun Verb
- Spanking Noun Adj Adv
- Spanwise Adj Adv
- Sparcely Adv
- Sparely Adv
- Sparingly Adv
- Sparkily Adv
- Sparkingly Adv