- Slouch
- Slouchy
- Sloughy
- Slovak
- Slovenly
- Slow neutron
- Slow tempo
- Slow worm
- Slow-moving
- Slowishness
- Slt
- Slubbering
- Slubberingly
- Slug
- Slugged
- Sluggish
- Sluice
- Sluice-gate
- Sluit
- Slumberless
- Slump
- Slung
- Slurp
- Slush fund
- Smack
- Smacked
- Small
- Small craft
- Small holder
- Small hours
- Small son
- Small wonder
- Small-pox pustule
- Small-scale
- Smallish
- Smallishness
- Smarmy
- Smart
- Smarten up oneself
- Smash hit
- Smeared cosmetics
- Smeared with poison
- Smeary
- Smell of powder
- Smelling
- Smelly
- Smelter
- Smelting
- Smicker
- Smile on
- Smirch
- Smirk
- Smis
- Smithery
- Smock
- Smog
- Smoke house
- Smoke proof
- Smokeless
- Smokescreen
- Smoko
- Smolder
- Smooth talking
- Smooth-spoken
- Smoothness
- Smorgasbord
- Smudginess
- Smug
- Smuggled goods
- Smugly
- Smut
- Snack
- Snake-cult
- Snake-hole
- Snakes egg
- Snakes hole
- Snakeskin
- Snap
- Snapper
- Snapping the fingers
- Snappish
- Snapshot
- snark
- Snarling
- Snatch
- Sneak attack
- Sneak away
- Sneer
- Sneeringly
- Snickering
- Sniffle
- Snipe
- Snipped
- Snipper
- Snooker
- Snooping
- Snore
- Snort
- Snow
- Snow flood