- control menu
- control panel
- control parameter
- control relay
- control screening
- control strategy
- control system
- control unit
- controlled spillway
- controlling depth
- conurbation
- convalescent hospital
- convection drier
- convector
- convene
- conventional fuel
- conventional level
- conventional memory
- converge
- conversation mode
- conversion coating
- convertible building
- convex tile
- conveyance structure
- conveying machine
- conveyor belt
- conveyor bridge
- conveyor drier
- convolution product
- convoyer
- continuous footing
- continuous grillage
- continuous loader
- continuous stringer
- continuous support
- contour line
- contour pen
- contouring
- contract
- contract documents
- contract letting
- contract price
- contract work
- contracted weir
- contraflexure
- contributor
- control character
- control job
- control light
- control measurement
- control refusal
- control test
- controlled drilling
- controlled mixture
- convalescent home
- convent
- conventional abbreviation
- conventional design
- conventional spraying
- conventional value
- converted timber
- convex bottom
- convex joint
- conveying collector
- conveyor
- conveyor carrier
- conveyor system
- convince
- cooling coil
- cooling pond
- cooling region
- cooling stack
- cooling system
- cooperative property
- coordinate action
- coordinate movements
- coordinate retrieval
- coordinates
- coordinating elevation
- coordination drawings
- coordination point
- coordinatograph
- copal
- cope
- coping
- coplanar forces
- copolymerization
- copper bar
- copper brassing
- copper casting
- copper coating
- copper glazing
- copper nail
- copper rivet
- copper rod
- copper roofing
- copper sheet
- copper wire
- coppice
- copping stone