18 words of 3 letters (1 points):ADO; AUA; AVO; BUD; BUR; DON; DUB; DUX; NOD; ODA; OVA; RAD; RUB; RUD; UDO; UVA; VAR; VAU.

11 words of 4 letters (1 points):AURA; BUDA; BUDO; BURA; DAUB; DAUR; DUAR; DURA; IXIA; NOVA; UDON.

1 word of 5 letters (2 point):RADON.