- Son of the soil
- Son-in-law
- Sonar
- Sonata
- Sonatina
- Sonce
- Sonder
- Sonding
- Song
- Song and dance
- Song-book
- Songbird
- Songless
- Songs
- Songster
- Songsters
- Songstress
- Songwriter
- Sonic
- Sonic boom
- Sonification
- Sonnet
- Sonneteer
- Sonnetize
- Sonny
- Sonography
- Sonometer
- Sonorific
- Sonority
- Sonorous
- Sonorously
- Sonorousness
- Sons
- Sons wife
- Sore loser
- Sore throat
- Sore-throated
- Sored-heal
- Sorely
- Soreness
- Sorghum
- Sororal polygyny
- Sororate marriage
- Sororicidal
- Sororicide
- Sorority
- Sorosis
- Sorrel
- Sorrily
- Sorriness
- Sorrow
- Sorrower
- Sorrowful
- Sorrowfully
- Sorrowfulness
- Sorrowing
- Sorrowless
- Sorry
- Sorry fellow
- Sort
- Sort of
- Sort out
- Sortable
- Sorter
- Sortie
- Sortilege
- Sorting
- Sorus
- Sos
- Sosterial
- Sot
- Soteriological
- Soteriology
- Sottish
- Sottishly
- Sottishness
- Sotto
- Sotto voce
- Sotto voice
- Sou
- Soubrette
- Souffle
- Sough
- Soundly
- Soundness
- Soundproof
- Sounds
- Soundtrack
- Soup
- Soup-kitchen
- Soupbone
- Soupcon
- Soupy
- Sour
- Sour cream
- Sour fruit
- Sour grapes
- Sour gruel
- Sour sauce
- Source