School-related terms:

Strike with the foot Tae
Strike with the hand Kwon
Way of life Do
Way of the Foot and Hand Tae Kwon Do 태권도
School Do-jang 도장
President Chong-jae 총재
Director / master Kwan-jang-nim 관장님
Instructor Sa-beom-nim 사범님
Senior Seon-bae-nim 선배님
Junior Son-a-rae 손아래
Uniform Do-bok 도복

Useful words and phrases:

Yes Ne
No A-ni-yo 아니요
Hello An-yeong-ha-se-yo 안녕 하세요
Goodbye (to one who is leaving) An-yeong-hi-ka-se-yo 안녕 히 가세요
Goodbye (to one who is remaining) An-yeong-hi-kye-se-yo 안녕 히 계세요
Thank you Gam-sa-ham-ni-da 감사 합니다
You’re welcome Cheon-man-ae-yo 천만에요
Sorry Joe-song-ham-ni-da 죄송합니다
Excuse me Shil-lye-ham-ni-da 실례합니다
Good luck Haeng-un-eul pim-ni-da 행운을 빕니다

Ranks and belts:

Junior rank (color belt) Geup
Senior rank (black belt) Dan
Belt Tti
White belt Huin-saek tti 흰색 띠
Yellow belt No-ran-saek tti 노란색 띠
Orange belt Ju-hwang-saek tti 주황색 띠
Green belt Nok-saek tti 녹색 띠
Blue belt Pa-ran-saek tti 파란색 띠
Red belt Ppal-gan-saek tti 빨간색 띠
Black belt Geom-jeong-saek tti 검정색 띠

Tenets of Tae Kwon Do:

Courtesy (literally, politeness) Ye-ui 예의
Integrity Yom-chi / Jeong-jik 염치 / 정직
Perseverance In-nae 인내
Self-control Geuk-gi 극기
Indomitable spirit Baek-jeol-bul-gul 백절불굴
Community service Sa-hui-bong-sa 사회봉사
Love Sa-rang 사랑

The Theory of Power:

Reaction force Ban-dong-ryeok 반동력
Concentration Jip-jung 집중
Equilibrium Kyun-hyeong 균형
Breath control Ho-heup 호흡
Speed Sok-do 속도

Commands:

Attention Cha-ryeot 차렷
Bow Kyeong-nye 경례
Ready Jun-bi 준비
Start Shi-jak 시작
Stop Geu-man 그만
As you were Pa-ro 바로
Relax Swi-eo 쉬어
Turn around Dwi-ro dor-a 뒤로 돌아
Yell Ki-hap 기합
Adjust uniform Do-bok jeong-ri 도복 정리

Attacks:

Punch Ji-reu-gi 지르기
Thrust Tol-ki / Chi-reu-gi 돌기 / 찌르기
Strike Ttae-ri-gi / Chi-gi 때리기 / 치기
Kick Cha-gi 차기

Kicks:

Front kick Ap cha-gi 앞 차기
Side kick Yeop cha-gi 옆 차기
Roundhouse kick Dol-lyeo cha-gi 돌려 차기
Back kick Dwi cha-gi 뒤 차기
Crescent kick Ban-dal cha-gi 반달 차기
Crescent kick (outside to inside) Ban-dal an cha-gi 반달 안 차기
Crescent kick (inside to outside) Ban-dal ba-kkat cha-gi 반달 바깥 차기
Axe kick Do-kki cha-gi 도끼 차기
Jumping front kick Ttwi-myeo ap cha-gi 뛰며 앞 차기
Jumping side kick Ttwi-myeo yeop cha-gi 뛰며 옆 차기
Jumping roundhouse kick Ttwi-myeo dol-lyeo cha-gi 뛰며 돌려 차기
Jumping crescent kick Ttwi-myeo ban-dal cha-gi 뛰며 반달 차기

Blocks:

Block Mak-gi 막기
Rising block (head block) Chu-kyeo mak-gi 추켜 막기
Guarding block Dae-bi mak-gi 대비 막기
Double knife-hand guarding block Son-kal dae-bi mak-gi 손칼 대비 막기
Twin forearm block Ssang pal-mok mak-gi 쌍 팔목막기
Double forearm block (push block) Du pal-mok mak-gi 두 팔목 막기
Wedging (spreading) block Hae-chyeo mak-gi 해쳐 막기
Circular block Dol-lyeo mak-gi 돌려막기
Upward block Ol-lyeo mak-gi 올려 막기
Downward block Nae-ryeo mak-gi 내려 막기
Mountain block San mak-gi 산 막기

Stances:

Stance Seo-gi 서기
Walking stance Geo-nun seo-gi 걷는 서기
L stance Ni-un seo-gi ㄴ 서기
Sitting stance An-nun seo-gi 앉는서기
Fixed stance Go-jeong seo-gi 고정 서기
Low stance Naj-chweo seo-gi 낮춰 서기
X (cross) stance Kyo-cha seo-gi 교차 서기
Closed stance Mo-a seo-gi 모아 서기
Rear foot stance Dwit-bal seo-gi 뒷발 서기
Ready stance Jun-bi seo-gi 준비 서기
Bending ready stance Gu-bu-ryeo jun-bi seo-gi 구부려 준비 서기
Parallel ready stance Na-ran-hi jun-bi seo-gi 나란히 준비 서기
Vertical stance Su-jik seo-gi 수직 서기

Directions:

High section Nop-eun-dae 높은데
Middle section Ka-un-dae 가운데
Low section Naj-eun-dae 낮은데
Side Yeop
Front Ap
Back Dwi
Inward An-eu-ro 안으로
Outward Bakk-eu-ro 밖으로
Upward Ol-lyeo 올려
Downward Nae-ryeo 내려
Right O-reun 오른
Left Wen
Inner An
Outer Ba-kkat 바깥
Forward Ap-eu-ro 앞으로
Backward Mul-leo-seo-myeo 물러서며

Activities:

Self-defense Ho-shin-sul 호신술
Sparring Kyeo-ru-gi 겨루기
1-step sparring Il-bo kyeo-ru-gi 일보 겨루기
3-step sparring Sam-bo kyeo-ru-gi 삼보 겨루기
Breaking Kyeok-pa 격파
Patterns Hyeong / Teul 형 / 틀

Hand / arm parts:

Hand Son
Palm Son-ba-dak 손바닥
Knife-hand Son-kal 손칼
Reverse knife-hand Son-kal deung 손칼등
Fingers Son-ga-rak 손가락
Fingertips Son-kkeutt 손끝
Fist Ju-meok 주먹
Forefist Ap ju-meok 앞주먹
Backfist Deung ju-meok 등주먹
Sidefist Yeop ju-meok 옆주먹
Arm Pal
Elbow Pal-kkup 팔꿈
Forearm Pal-mok 팔목

Foot / leg parts:

Leg Da-ri 다리
Foot Bal
Ball of foot Ap-kkum-chi 앞꿈치
Heel Dwi-kkum-chi 뒤꿈치
Footsword Bal-kal 발칼
Ankle Bal-mok 발목
Knee Mu-reup 무릎
Instep Bal-deung 발등
Toes Bal-ka-rak 발가락

Korean numbers
(for counting, as in patterns):

1 Ha-na 하나
2 Dul
3 Set
4 Net
5 Ta-seot 다섯
6 Yeo-seot 여섯
7 Il-gop 일곱
8 Yeo-deol 여덟
9 A-hop 아홉
10 Yeol
11 Yeol ha-na 열하나
20 Seu-mul 스물
21 Seu-mul ha-na 스물하나
30 Seo-reun 서른
40 Ma-heun 마흔
50 Swin
60 Yae-sun 예순
70 Il-heun 일흔
80 Yeo-deun 여든
90 A-heun 아흔

Sino-Korean (Ordinal) numbers:

1st Il
2nd I
3rd Sam
4th Sa
5th O
6th Yuk
7th Chil
8th Pal
9th Gu
10th Ship
11th Ship-il 십일
20th I-ship 이십
21st I-ship-il 이십일
38th Sam-ship-pal 삼십팔
100th Baek
1000th Cheon
10,000th Man

These terms excerpted from Han’s Taekwondo