- survivor
- susceptible
- suspect
- suspend
- suspended animation
- suspended sentence
- suspender belt
- suspenders
- suspense
- suspension
- suspension bridge
- suspicion
- suspicious
- suspiciously
- suss
- sustain
- sustenance
- suture
- svelte
- SW
- swab
- swagger
- Swahili
- swallow
- swam
- swamp
- swan
- swap
- swap meet
- SWAPO
- swarm
- swarthy
- swashbuckling
- swastika
- swat
- swatch
- swathe
- swathed
- swatter
- sway
- Swazi
- Swaziland
- swear
- swearword
- sweat
- sweatband
- sweater
- sweatshirt
- sweatshop
- sweaty
- swede
- Swede
- Sweden
- Swedish
- sweep
- sweeper
- sweeping
- sweepstake
- sweet
- sweet corn
- sweet pea
- sweet potato
- sweet shop
- sweet tooth
- sweet-and-sour
- sweeten
- sweetener
- sweetheart
- sweetness
- sweet-talk
- swell
- swelling
- sweltering
- swept
- swerve
- swift
- swiftly
- swiftness
- swig
- swill
- swim
- swimmer
- swimming
- swimming baths
- swimming cap
- swimming costume
- swimming pool
- swimming trunks
- swimsuit
- swindle
- swine
- swing
- swing bridge
- swing door
- swingeing
- swinging
- swinging door
- swipe
- swirl
- swish
- Swiss
- Swiss chard
- swiss roll
- switch
- Switch®
- switchblade
- switchboard
- switchboard operator
- switched-on
- Switzerland
- swivel
- swivel chair
- swollen
- swoon
- swoop
- swop
- sword
- swordfish
- swordsman
- swore
- sworn
- swot
- swum
- swung
- sycamore
- sycophant
- Sydney
- syllable
- syllabub
- syllabus
- symbol
- symbolic
- symbolism
- symbolize
- symmetrical
- symmetry
- sympathetic
- sympathize
- sympathizer
- sympathy
- symphonic
- symphony
- symphony orchestra
- symposium
- symptom
- symptomatic
- synagogue
- sync
- synchromesh
- synchronize
- synchronized swimming
- syncopated
- syncopation
- syndicate
- syndrome
- synergy
- synod
- synonym
- synonymous
- synopsis
- syntax
- synthesis
- synthesize
- synthesizer
- synthetic
- syphilis
- syphon
- Syria
- Syrian
- syringe
- syrup
- system
- system disk
- system software
- systematic
- systematize
- systems analyst
- systems engineer