Solutions :

3-letter words (1 point): 70

ABO; ABS; ADO; ADS; AID; ARD; ARF; BAD; BAS; BID; BIS; BIT; BOD; BOR; DAB; DAE; DAS; DEI; DIB; DID; DIE; DIF; DIS; DIT; DIV; DOB; DOF; DOL; DOR; EAR; FAD; FAE; FAR; FIB; FID; FIE; FIT; FOB; FOR; FRA; FRO; IDE; LOB; LOD; LOR; OBA; OBI; OBS; ODA; ODS; ORA; ORD; ORF; RAD; RAI; ROB; ROD; SAB; SAD; SIB; SIF; SIT; TEA; TED; TID; TIE; TIS; VID; VIE; VIS.

4-letter words (1 point): 65

ABID; ADIT; AFRO; AIDE; BADS; BIDE; BIDI; BITE; BODS; BORA; BORD; DABS; DEAF; DEAR; DEID; DEIF; DIBS; DIED; DIET; DISA; DITE; DIVS; DOBS; EARD; EARL; EDIT; FADE; FARD; FARL; FARO; FIBS; FLOR; FOBS; FORA; FORD; FRAE; IDEA; ISBA; LOBI; LOBS; LODS; LORD; OBAS; OBIS; OBIT; ODAS; ORAD; RADE; RAID; ROBS; RODS; ROLF; SADO; SIDA; SIDE; SITE; TEAD; TEAR; TIDE; TIED; VIBS; VIDE; VIED; VISA; VITE.

5-letter words (2 points): 15

ABIDE; ABORD; ABSIT; AROBA; ASIDE; BIDET; BORDE; DIDIE; DITED; DOBIE; DORAD; FLORA; OBIED; SITED; VIFDA.

6-letter words (3 points): 4

AROBAS; FLORAE; FORDID; VIFDAS.

7-letter word (7 points): 1

BASIDIA.