- sonant
- sonar
- sonata
- sonatina
- sonde
- sone
- song
- song cycle
- song thrush
- songbird
- songbook
- songfest
- songsmith
- songster
- songstress
- songwriter
- sonic
- sonic barrier
- sonic boom
- son-in-law
- sonnet
- sonny
- sonobuoy
- son-of-a-bitch
- son-of-a-gun
- sonogram
- sonority
- sonorous
- sonorously
- soon
- sooner
- soonish
- soot
- sooth
- soothe
- soothing
- soothingly
- soothsayer
- soothsaying
- sooty
- sop
- sophism
- sophist
- sophisticate
- sophisticated
- sophistication
- sophistry
- Sophocles
- sophomore
- soporific
- sopping
- soppy
- soprano
- sorb
- sorbet
- sorbic acid
- sorbitol
- sorcerer
- sorceress
- sorcery
- sordid
- sordino
- sore
- sorehead
- sorely
- soreness
- sorghum
- sorority
- sorrel
- sorrow
- sorrowful
- sorrowfully
- sorrowing
- sorry
- sorry-ass
- sort
- sort code
- sorta
- sorted
- sorter
- sortie
- sorting
- sorting office
- sort-out
- SOS
- so-so
- sot
- sottish
- sotto voce
- sou
- soufflé
- sough
- sought
- sought-after
- soul
- soul brother
- soul food
- soul mate
- soul music
- soul patch
- soul sister
- soul-destroying
- soulful
- soulfully
- soulless
- soul-searching
- soul-stirring
- sound
- sound archives
- sound barrier
- sound box
- sound card
- sound effects
- sound engineer
- sound hole
- sound shift
- sound system
- sound wave
- soundbite
- soundboard
- sounder
- -sounding
- sounding
- sounding board
- sounding line
- soundless
- soundlessly
- soundly
- soundness
- soundproof
- soundproofing
- soundtrack
- soup
- soup kitchen
- soup plate
- soup spoon
- soup tureen
- soupçon
- souped-up
- soupy
- sour
- sour cream
- sour grapes
- sour mash
- sourball
- source
- source code
- source language
- source program
- sourdough
- sour-faced
- sourly
- sourness
- sourpuss
- soursop
- sousaphone
- souse
- soutane
- south
- South Africa
- South African
- South America
- South American
- South Bank
- South Carolina
- South Dakota
- South Korea
- South Korean
- South Pacific
- South Pole
- South Sea Bubble
- South Seas
- South Vietnam
- South Vietnamese
- South Yemen
- southbound
- southeast
- Southeast Asia
- southeaster
- southeasterly
- southeastern
- southeastwards
- souther
- southerly
- southern
- Southern Cross
- Southern Ireland
- southerner
- southernmost
- south-facing
- southpaw
- south-southeast
- south-southwest
- southward
- southwards
- southwest
- southwester
- southwesterly
- southwestern
- southwestwards