Tettsui-uchi
Tettsui-uchi is a Karate hammer-fist strike using the little-finger-side outer edge of a closed fist.
Uchi-waza
Enpi-uchi
Enpi-uchi is a close-range Karate elbow strike; named directions, spelling, applications and competition status depend on the source and training context.
Uraken-uchi
Uraken-uchi is a Karate back-fist strike using the index- and middle-finger knuckle area; its path and practice context vary by tradition.
Shutō-uchi
Shutō-uchi is a Karate knife-hand strike using the hand’s outer little-finger edge; its path, target and practice method vary by tradition.
Uchi-waza
Uchi-waza is a Karate label for striking techniques, used here as a bounded gateway rather than a universal classification shared by every style.