- supernumerary
- supernova
- supporting
- shoring up
- scatter
- sexagenarian
- sequent
- sandpaper
- sandbar
- screen off
- slatternly
- separate the sheep from the goats
- short term
- seamy
- soundness
- seeded
- scalp
- shocking
- soigne
- sickly
- space shuttle
- sinter
- stun
- serenade
- savings bank
- spherical aberration
- spontaneously
- serb
- shambles
- stagnancy
- served
- slave labour
- subservient
- sunset
- shank
- sublet
- sublease
- secateurs
- scant
- seductiveness
- sash
- sneaky
- severally
- siphon
- senatorial
- soporific
- subeditor
- squab
- substantive
- save the day