- default button
- defeat
- damming
- damp course
- damp soil
- damp-proof
- damped tube
- damper
- damping characteristics
- damping rate
- dampness
- dance hall
- danger indicator
- dangerous
- dangerous place
- dangerous section
- dangle
- dap
- darby
- dare
- daring
- darkroom
- dash
- data collection
- data menu
- data retrieval
- data sheet
- datum line
- daub
- day schedule
- de-energize
- deactivate
- dead ditch
- dead lime
- dead lode
- dead time
- dead-leg
- deadbolt
- deadload
- deaerate
- deal
- dearth
- debonair
- debris basin
- debunk
- definitive evaluation
- deflect
- deflection curve
- deformation calculation
- deformation rate
- deformation space
- deformed reinforcement
- deformed section
- degreasing agent
- degree
- dehydrated tar
- deify
- deism
- deity
- delayed blast
- delete arrow
- delete columns
- delicate
- delicatessen
- delimiter
- delineate
- delineator
- delirious
- delirium
- deliverable
- delivered site
- delivery
- delivery contract
- delivery head
- delivery note
- delivery pipe
- delivery pipeline
- delivery schedule
- delivery set
- delivery terms
- delta connection
- delta hinge
- delta plain
- delta terrain
- deltageosyncline
- delubrum
- deluge
- delve
- deaerator
- debris
- debut
- decantation test
- decapitate
- decarbonation
- decarbonized steel
- decayed rock
- decelerator pedal
- decentralization
- decentralized construction
- dechlorination