- digging force
- digit rate
- digital
- digital calculator
- digital circuit
- digital clock
- digital code
- digital communication
- digital companding
- digital computation
- digital computer
- digital control
- digital converter
- digital counter
- digital data
- digital display
- digital exchange
- digital filter
- digital filtering
- digital framer
- digital front
- digital image
- digital imaging
- digital indicator
- digital information
- digital integrator
- digital inverter
- digital keyboard
- digital machine
- digital meter
- digital modem
- digital modulation
- digital modulator
- digital module
- digital multimeter
- digital multiplexer
- digital multiplier
- digital music
- digital noise
- digital output
- digital photography
- digital plotter
- digital process
- digital processing
- digital quantity
- digital readout
- digital recording
- digital representation
- digital signal
- digital signature
- digital simulation
- digital simulator
- digital switch
- digital switching
- digital synthesizer
- digital system
- digital telephone
- digital television
- digital transmission
- digital trunk
- digital typography
- digital variable
- digital video
- digital videodisc
- digital videodisk
- digital voltmeter
- digitalin
- digitalization
- digitalize
- digitalized data
- direction signing
- directional
- directional array
- directional control
- directional drilling
- directional gain
- directional indicator
- directional microphone
- directional pattern
- directionality
- directionality factor
- directivity pattern
- director
- director antenna
- director general
- director surface
- directory
- directory number
- directory service
- dirt band
- dirt mover
- dirt pile
- dirty
- disability
- disable
- disaggregate
- disaggregation
- disappearance
- disapprove
- disarrange