Solutions :

3-letter words (1 point): 61

ACE; AIN; ANE; ANI; APE; APO; ASS; AUE; CAN; CAP; CEE; COD; COP; COS; DOC; DOP; DOS; EAN; EAS; EAU; ECO; EEN; ENE; ESS; ICE; NAE; NAP; NAS; NEE; NIE; NIP; NIX; OCA; OPE; OSE; PAC; PAN; PAS; PIA; PIC; PIE; PIN; PIU; PIX; POD; POS; SAC; SAE; SAI; SAN; SAP; SAU; SEA; SEC; SEE; SEN; SOC; SOD; SOP; SOS; UNI.

4-letter words (1 point): 76

ACES; AESC; AINE; ANES; APEX; APOD; APOS; ASCI; AUNE; CAIN; CANE; CAPE; CAPI; CAPO; CASE; CEAS; CESS; CINE; COPE; COSE; COSS; DOCS; DOPA; DOPE; DOSE; DOSS; EASE; ECOD; ECOS; EINA; EINE; ENES; EPIC; EPOS; EXPO; ICES; NAPE; NEAP; NESS; NICE; NIPA; NIXE; OCAS; OSSA; PACE; PACO; PACS; PAIN; PANE; PASE; PASS; PEIN; PIAN; PIAS; PICA; PICE; PICS; PINA; PINE; POSE; POSS; SACS; SAIC; SAIN; SANE; SCAN; SCOP; SEAN; SECO; SECS; SEEN; SENA; SENE; SOCA; SOCS; UNAI.

5-letter words (2 points): 31

AINEE; AUNES; CANES; CAPOS; CINES; DOPAS; ENIAC; EPICS; EXINE; EXPOS; NIPAS; OCEAN; OPINE; PACES; PACOS; PANES; PANIC; PICAS; PINAS; PINES; POSSE; SAICE; SAICS; SAINE; SCAPE; SCAPI; SCENA; SCENE; SCOPA; SCOPE; SOCAS.

6-letter words (3 points): 14

APICES; ENIACS; ESCAPE; EXINES; EXPOSE; OPINES; OSCINE; PANICS; PICENE; SCENAS; SCOPAE; SCOPAS; UNEASE; UNIPOD.

7-letter words (7 points): 4

EPICENE; OSCINES; POSAUNE; SCAPOSE.

8-letter word (11 points): 1

DOPINESS.