- document imaging
- document machine
- document mark
- document name
- document reading
- document retrieval
- document scanner
- document sharing
- document sorting
- Document Template
- document title
- document window
- documentary language
- dolomitic lime
- domain analysis
- domain architecture
- domain controller
- domain engineering
- domain knowledge
- domain model
- domain operator
- domain search
- domain vector
- dominant series
- domino
- dormant state
- DOS box
- DOS diskette
- DOS partition
- DOS prompt
- dot
- dot address
- dot file
- dot leader
- dot line
- dot pitch
- dot system
- dot-style
- dotted
- dividing circuit
- divisible group
- division operator
- division sign
- divisor
- DO statement
- Docked Toolbar
- document area
- document drawer
- document image
- document instance
- Document Map
- document number
- document profile
- document type
- domain
- domain functional
- domain selection
- domain theory
- domestic robot
- dominance
- dominant strategy
- dominant vector
- dominating equation
- dongle
- donor
- donor state
- dope
- doping compensation
- DOS extender
- DOS mode
- DOS requester
- dot frequency
- dot mark
- dot printing
- dot prompt
- double bridge
- double byte
- double collision
- double complex
- double contact
- double graded
- double layer
- double limit
- double limiter
- double negation
- double prime
- double punch
- double quote
- double recording
- double recursion
- double seaming
- double sequence
- double shear
- double source
- double strike
- double tangent
- doubler
- doubling circuit
- doubtful region
- doughnut