- Semi-final
- South-east
- South-eastern
- Semiofficial
- Sowed
- Sensuously
- Space-time
- Spadix
- Sentenced
- Sparsely
- Speared
- Separably
- Spectrographic
- Spell-bound
- Servants
- Spherule
- Spinose
- Set-up
- Seventy-one
- Sewing-machine
- Sex-starved
- Shake-up
- Shakily
- Sharp-set
- She-goat
- Shelf-life
- Shell-shock
- Spumous
- Squatted
- Squint-eyed
- Stage-struck
- Stage-hand
- Stage-manage
- Stag-party
- Scandent
- Scalene
- Scission
- Scunner
- Secondrate
- Seiche
- Selfconfidence
- Selfcontrol
- Selfconscious
- Selfdestruction
- Self-deception
- Selfdefence
- Selfpity
- Selfrespect
- Selfgovernment
- Selfsacrifice