UCHIKOMI (v.UTSU) - To beat against. A repetitive exercise where the throwing technique is taken to point of kake.

UDE - Arm..

UE - Above, on top of.

UKE (v. UKERU) - To take. The name used often in technical explanations for the person who is thrown..

UKEMI - The 'breakfall'..

UKI (v. UKU) - To float. Buoyant.

URA - Back, rear, reverse..

USHIRO - Behind, back of (e.g. ushirogoshi = back of hip)..

UTSURI (v. UTSURU) - To change, move
(e.g. utsurigoshi = changing . hip).