Sacrifice
Sadism
Saliva
Sand
Scar
Scatology (feces, bodily waste)
School
Scissors
Scream
Sex
Shadow
Shame
Shoes
Shopping
Shopping mall
Sick
Silhouette
Singing
Sister
Skeleton
Sleep paralysis
Sleepwalking (somnambulism)
Smile
Smoke
Snake
Snow
Soldier
Spider
Spiderweb
Stairs
Stalked
Stalking
Stars
Storm
Succubus
Suffocating
Suicide
Sun
Supernatural
Surreal
Swarm
Synchronicity