At Yu Ki Do, understanding Japanese terminology is a requirement of grading.
The required terminology is presented here for white through yellow and orange to blue belt.
Subsequent colour belts are red, brown (with one and two stripes) and, finally, black.
Not all the required terminology is listed here (this much should get you started at least) but if you really need to know, email me and I'll post the remainder to this page.
As for the correct pronunciation ... you'll just have to come to the dojo!

         

White belt
Yellow tip

 Sensei
(Instructor)

Hai
(Yes)

 Dojo
(Training Hall)

Jodan
(Head level)

Chudan
(Stomach level)

Gedan
Groin level)
 
Yellow belt Chudan Tsuki
(Stomach level punch)		 Jodan Tsuki
(Head level punch)		 Gedan Tsuki
(Groin level punch)		 Shita Tsuki
(Short punch)		 Heiko Dachi
(Parrallel stance)		 Zenkutsu dachi
(Forward stance)
 
Orange Belt Shiko Dachi
(Sumo stance)		 Ichi, Ni, San, Shi, Go, Roku, Shichi, Hachi, Ku, Ju (counting 1-10)
 
Green Belt Mae Geri
(Front kick)		 Mawashi Geri
(Roundhouse kick)		 Yoko Geri
(Side kick)		 Ushiro Geri
(Back kick)		 Sanchin Dachi
(Pigeon-toed stance)
 
Blue Belt Jodan Age Uke
(Rising head block)

Uchi Uke
(Hooking block)

 Soto Uke
(Outside block)		 Gedan Bari
(Downward block)		 Gedan Uke
(Sweeping block)		 Kiba Dachi
(Horse riding stance) and
Kokutsu Dachi
(Back leaning stance)
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