- Songster
- Songwriter
- Sonic boom
- Sonnetize
- Sonny
- Sonography
- Sonometer
- Sonorific
- Sonorous
- Sonorousness
- Sons wife
- Sonse
- Sonsy
- Sooner or later
- Soot
- Soothingly
- Soothsaying
- Sootish
- Sooty
- Sophism
- Sophister
- Sophomore
- Soporiferous
- Sopranist
- Sorceress
- Sorcery
- Sordidness
- Sore
- Sorely
- Soreness
- Sorghum
- Sororate marriage
- Sorority
- Sorrily
- Sorriness
- Sorrowful
- Sorrowing
- Sorry
- Sort
- Sorting
- Sot
- Sotto voce
- Sou
- Souk
- Soulful
- Sound box
- Sound effect
- Sound health
- Sound-film
- Sound-post
- Soundproof
- Sounds
- Soup-kitchen
- Soupbone
- Sour gruel
- Sourish
- South assam
- South pole
- South wind
- South-eastern corner
- Souther
- Southerner
- Southward, southwar
- Sovietism
- Soya bean
- Soybean
- Sozzle
- Spa
- Space heater
- Space science
- Space-craft
- Spade-work
- Spadeful
- Spado
- Span
- Span kingly
- Span of a bridge
- Sparc
- Spare time
- Sparrow
- Spasm
- Spasmodic cholera
- Spat
- Spatial
- Spatio-temporal awareness
- Spaz
- Speak
- Speak the same language
- Speakeasy
- Spearhead
- Special edition
- Specialized
- Species
- Specific centre
- Specifically
- Specifics
- Speckle
- Spectacled
- Spectacularity
- Spectre