- Dobok
- The white V-neck taekwondo uniform; black collar for dan holders, black-and-red collar for poom (USAT Art. 4.4).
- Dojang
- The training hall (Kukkiwon's 1972 building was the KTA Central Dojang).
- Geup (gup)
- Colored-belt grade, counted down toward black; USAT ties yellow to 7th and 8th geup and red to 1st and 2nd.
- Poom
- Junior black-belt rank, 1st to 4th poom, for black belts 14 and under (USAT), converting to dan with age.
- Dan
- Black-belt rank, 1st to 9th dan, certified only by Kukkiwon.
- Poomsae
- A set pattern of attack and defense; the Taegeuk series (Il Jang to Pal Jang) carries the colored belts.
- Kyorugi
- Sparring; the Olympic competition event.
- Gyeokpa (kyukpa)
- Breaking; a separate USA Taekwondo rule set.
- Hoshinsul
- Self-defense; Kukkiwon's families include joint-locks (kkeokgi), take downs (neomgigi), grasping (japgi) and releases (ppaegi).
- Kihap
- The yell; its placement is judged in poomsae.
- Cha-ryeot
- Attention (referee command before the bow).
- Kyeong-rye
- Bow.
- Joon-bi
- Ready.
- Shi-jak
- Start.
- Keu-man
- Stop; the end of a round.
- Kal-yeo
- Break; the referee pauses the action, and attacking after Kal-yeo is a penalty.
- Kye-sok and Kye-shi
- Continue, and the one-minute injury pause.
- Gam-jeom
- The penalty, worth one point to the opponent; ten in a match (five in a round under best-of-three) loses.
- Chung and Hong
- Blue and red, the two contestants.
- Hogu and PSS
- The trunk protector and the electronic Protector and Scoring System that registers valid kicks and, from 2026, punches.