- supply base
- supply circuit
- supply connection
- supply contract
- supply line
- supply pressure
- supply vessel
- supporting pack
- supporting saddle
- suppressor
- surf zone
- surface activity
- surface bearing
- surface change
- surface chemistry
- surface clause
- surface coating
- surface compound
- surface condenser
- surface crack
- surface density
- surface dressing
- surface fermentation
- surface hardening
- surface ignition
- surface moraine
- surface outcropping
- surface phenomena
- surface plant
- surface reaction
- surface sample
- surface shooting
- surface structure
- surface treating
- surface wash
- surface wave
- surface wear
- surface work
- surface-active
- surfaceman
- surfacial deposit
- surfacing
- surfacing mat
- surfactant mud
- surge
- surge chamber
- surge drum
- surge pump
- substructure
- subterranean karst
- sudburite
- suds
- sulfanilamide
- sulfhydrate
- sulfinic
- sulfolene
- sulfonated
- sulfone
- sulfur cement
- sulfur content
- sulfuric ester
- sulphapyridine
- sulphathiazole
- sulphoborite
- sulphohalogenated derivative
- sulphonamide
- sulphosalt
- sulphur compound
- sulphur dioxide
- sulphur fume
- sulphur ore
- sulphur refinery
- sulphur trioxide
- sulphuric
- sulphurize
- sulphurous water
- sump hole
- sump pit
- sump shot
- sump tank
- sun test
- super-polymer
- superficial layer
- supergasoline
- superheat
- superheat temperature
- superheavy element
- superincumbent stratum
- superinsulation
- superior
- surge vessel
- surging well
- surplus
- surroundings
- survey instrument
- survey net
- susceptibility
- suspended arch
- suspended impurities
- suspended matter