half - hier
- hard metal powder alloy automatic press
- hard milling
- hard part
- hard pointed tool
- hard program
- hard self-excitation
- hard shaving
- hard software
- hard spot
- hard spring
- hard steel
- hard superconducting alloy
- hard top jaw
- hard turning
- hard wire handshaking
- hard work
- hard X-ray machine
- hard-and-fast rule
- hard-anodized
- hard-automated system
