- soil bituminization
- soil bulge
- soil cementation
- soil compaction
- soil compressibility
- soil concrete
- soil constant
- soil corrosion
- soil crosion
- soil dam
- soil dewatering
- soil drain
- soil draining
- soil dynamics
- slab
- slab bridge
- slab floor
- slab reinforcement
- slab vibrator
- slabbing mill
- slacking
- slag inclusion
- slag sand
- slat band
- slate
- slate nail
- slate roofing
- slate tile
- slatted shutter
- sleeve
- sleeve filter
- sleeve socket
- slender column
- slender rod
- slender wall
- slenderness effect
- slewing crane
- sliding agent
- sliding bearing
- sliding failure
- sliding formwork
- sliding joint
- sliding plate
- sliding sash
- sliding shuttering
- sliding velocity
- sliding wedge
- slime separator
- sling
- slinging
- slip road
- slip vein
- slope circle
- slope drainage
- slope failure
- slope inclination
- slope position
- slope revetment
- slope stake
- slope tracing
- slot
- slot borer
- slotted block
- slotted drain
- slotted pile
- slough
- sludge bank
- sludge degester
- sludge dewatering
- sludge lagoon
- sludge mixture
- sludge valve
- slump
- slurry liquefier
- slurry seal
- slushing
- small pickaxe
- small valley
- smalls
- smoke box
- smoke emission
- smoke shaft
- smoke spill
- smoke venting
- smoke-exhauster
- smoldering fire
- sliding mass
- sliding rod
- sliding scaffold
- sliding transom
- sling twisting
- slinger
- slip
- slip circle
- slip form
- slip joint
- slip mortise
- slippage distance
- slipper positioning
- slipping bearing