Solutions :

3-letter words (1 point): 46

AAS; ACE; AIA; AIM; AIN; AMI; ANA; ANE; ANI; ANN; CAA; CAM; CAN; CEE; EAN; EAS; EEN; EMO; ENE; EWE; ICE; INN; MAA; MAC; MEE; MEW; MIC; MOA; MOI; NAE; NAN; NAS; NEE; NEW; NIE; NIM; SAC; SAE; SAI; SAN; SEA; SEC; SEN; WEE; WEM; WEN.

4-letter words (1 point): 67

ACAI; ACES; ACME; ACNE; AESC; AIAS; AINE; AMIA; AMIE; AMIN; ANAN; ANAS; ANCE; ANES; ANEW; ANNA; ASCI; CAAS; CACA; CAIN; CAME; CAMO; CANE; CANN; CASE; CEAS; CIAO; CINE; EINA; EINE; EMIC; ENES; ENEW; ICES; JANE; JANN; MAAS; MACE; MACS; MAIN; MEIN; MICA; MICE; MICS; MINA; MINE; MOAI; NAAM; NAIN; NANA; NANE; NEEM; NENE; NICE; SAIC; SAIM; SAIN; SANE; SCAM; SCAN; SEAN; SENA; SENE; WEAN; WEEM; WEEN; WENA.

5-letter words (2 points): 34

ACMIC; ACNES; AECIA; AINEE; AMIAS; AMICE; AMINE; ANIMA; ANIME; ANNAS; CACAO; CAECA; CANES; CANNA; CINES; EMACS; ENIAC; INANE; JANES; JNANA; MACES; MICAS; MINAE; MINAS; MINCE; MINES; NANAS; NANCE; NIECE; SAICE; SAINE; SCENA; SCENE; SENNA.

6-letter words (3 points): 18

ACACIA; AMICES; AMINES; CAIMAC; CANCAN; CANNAE; CANNAS; CANNIE; ENCASE; ENIACS; INANES; INCASE; JNANAS; NEANIC; SANNIE; SCENIC; SEANCE; SENECA.

7-letter words (7 points): 3

CAIMACS; EMACSEN; SENECIO.

8-letter word (11 points): 1

NASCENCE.