- cantilever beam
- cantilever wing
- cap screw
- capacity clause
- cape-gauge
- Capital account
- Capital asset
- capital assignment
- Capital goods
- capital reduction
- captain
- captation drag
- car deck
- car distribution
- car load
- car pool
- capital increase
- capital investment
- captain call
- car
- car builder
- car dumper
- car pooling
- car seal
- cargo barge
- cargo derrick
- cargo hatch
- cardinal points
- cardinal system
- cargo boom
- cargo compartment
- cargo hatchway
- cargo hold
- cargo plan
- cargo plane
- cargo post
- cargo space
- cargo winch
- carload
- carrying rope
- cart load
- cartage contractor
- Cash flow
- cash outflows
- cast about
- cast anchor
- cast crossing
- cast off
- carrick bend
- carrier
- carrier rope
- carry
- cart
- cartage service
- cartridge assembly
- cash book
- cash inflows
- catamaran ship
- catering car
- cattle wagon
- caulker
- catamaran
- catenary support
- caterpillar bulldozer
- caulk
- caulk joint
- caustic signal
- ceiling light
- celestial navigation
- center casting
- central control
- centre sill
- centreboard
- center girder
- center line
- center panel
- central station
- centre bearing
- centre casting
- centre girder
- centre line
- certified checque
- cess rail
- chain ferry
- chain gang
- chain locker
- channel intersection
- charted depth
- charter-party
- check
- check rail
- centerboard
- centre panel
- chafing strip
- chain brake
- chain plate
- chair lift
- channel marks
- channel track
- charge