- cast off
- cast stone
- castellated
- castellated beam
- casting
- casting area
- casting conveyor
- casting iron
- casting machine
- casting park
- casting plaster
- casting shop
- casting technique
- casting yard
- castle
- carport
- carriage
- carriage bolt
- carriage piece
- carriage-way
- carriageway
- carriageway width
- carrier
- carrier car
- carrier dragline
- carrier wagon
- carry out
- carry-over
- carrying cable
- cart
- Cartesian coordinate
- carton drawing
- carve
- carving
- carving knife
- caryatid
- caryatide
- cascade amplifier
- cascade tray
- cascade welding
- cascading event
- case bay
- case foundation
- case sensitivity
- cased beam
- cased glass
- cased well
- casein painting
- casement
- casement bolt
- casement hinge
- casement sash
- casement window
- cash desk
- casing
- casing clamp
- casing clutch
- casing elevator
- casing head
- casing hook
- casing pile
- casing ring
- castle-fortress
- castor
- castrate
- casual
- casual load
- cat basin
- cat eye
- cataclase
- cataclastic
- cataclastic structure
- catacombs
- catalogue
- catalogue page
- catalogue room
- catalyst
- catch basin
- catch drain
- catch up
- categorization
- caterpillar
- caterpillar crane
- caterpillar tractor
- cathead
- cathedral
- cathedral ceiling
- cathode protection
- catilever erection
- cation exchanger
- cationic adsorbent
- cattle bath
- cauking compound
- cauking gun
- caulking compound
- causeway
- caustic lime
- caution sign
- cave gallery
- cavern