coun - cut
- counter
- counter tube
- counterbalance
- counterblow hammer
- counterbore
- counterboring
- counterclockwise direction
- counterclockwise rotation
- counterelectromotive force
- counterflow
- counterflow condenser
- counterflow cooling tower
- counterflow heat exchanger
- counterflow regenerator
- countershaft
- countersink
- countersinking
- countersunk bolt
- countersunk head
- countersunk head rivet
