Solutions :

3-letter words (1 point): 47

AAS; ASS; CEE; CID; CIS; COS; COW; DAE; DAS; DIF; DIS; EAS; ECO; EEN; EFS; ENE; ENS; ESS; FAA; FAD; FAE; FAS; FEE; FEN; FES; FID; ICE; IFS; IOS; ISO; IWI; NEE; NEF; OSE; SAD; SAE; SEA; SEC; SEE; SEN; SIC; SIF; SIS; SOC; SOW; WIS; WOS.

4-letter words (1 point): 55

AESC; ASCI; CEES; CENS; CESS; COIF; COSE; COSS; DAES; DICE; DIFS; DISA; DISC; DISS; EASE; ECOS; ENES; ESES; ESNE; ESSE; FAAS; FEEN; FEES; FENS; FESS; FICE; FICO; FISC; ICES; IWIS; NEFS; NESS; OSES; SADI; SAFE; SCOW; SECO; SECS; SEEN; SEES; SENE; SENS; SESE; SESS; SICE; SICS; SIDA; SISS; SNEE; SOCS; SOWF; WICE; WIFE; WISE; WISS.

5-letter words (2 points): 35

ADIOS; ASSES; CENSE; CESSE; COIFS; COSES; DICES; DISCO; DISCS; EASES; ESNES; ESSES; FASCI; FEASE; FEENS; FEESE; FESSE; FICES; FICOS; FISCS; NEESE; SADIS; SCENE; SENSA; SENSE; SENSI; SESSA; SICES; SIDAS; SISES; SNEAD; SNEES; SOWFS; WIFES; WISES.

6-letter words (3 points): 17

AESCES; CESSES; COSSES; DISCOS; DISSES; ECESIS; FASCES; FASCIO; FASCIS; FEASES; FEESES; FESSES; NEESES; NESSES; SCENES; SENSIS; WISSES.

7-letter words (7 points): 3

ASCESES; DIOCESE; SENECIO.

8-letter words (11 points): 4

DIOCESES; SAFENESS; SENECIOS; WISENESS.