- space graphics
- space management
- space quartic
- space suppression
- space variable
- spacebar
- spacing ratio
- spaghetti code
- span
- spanning tree
- spare unit
- spark counter
- sparse array
- sparsearray
- spatial analysis
- spatial data
- spatial interaction
- spatial query
- spatter
- speaker volume
- special congruence
- special delivery
- special file
- special library
- special-names
- specialization
- specialized access
- specific
- specific coding
- specific cryptosystem
- specific humidity
- specific mode
- specific pressure
- specific routine
- specific symbol
- specific term
- specification
- specification check
- Specification error
- specification language
- specification statement
- specify
- spectrum management
- spectrum signature
- speech amplifier
- speech compression
- speech recognition
- speech synthesis
- speed dialing
- speed indicator
- spelling check
- sphere bundle
- spherical cap
- spherical cone
- spherical degree
- spherical excess
- spherical indicatrix
- spherical loxodrome
- spherical polygon
- spherical region
- SPHERICAL SECTOR
- spherical segment
- spherical vault
- sphericity
- sphero-quartic
- spheroidal coordinates
- specific address
- specific authority
- specific density
- specific poll
- specific task
- specification display
- specifity
- spectral band
- spectral color
- spectral effciency
- spectral sensitivity
- spectrum sensitivity
- specular reflection
- speech recognizer
- speech understanding
- speed bar
- spell checking
- speller
- spend
- spent
- sphere-conic
- spheric segment
- spherical
- spherical catenary
- spherical geometry
- spherical image
- spherical metric
- spherical prepotential
- spherical shell
- spherical shock
- spherical space
- SPHERICAL ZONE
- sphericalloxodrome
- sphero-conic