Solutions :

3-letter words (1 point): 47

AIM; AIN; AMI; ANE; ANI; CEE; CEL; COD; DEE; DEL; DOC; DOE; ECO; EEL; EEN; ELM; ELS; EME; ENE; LED; LEE; LEI; LES; LEZ; MAN; MED; MEE; MEL; MEM; MEN; MES; MIM; MNA; NAM; NEE; NIE; NIM; ODE; OES; SEC; SED; SEE; SEL; SEN; SEZ; ZEE; ZEL.

4-letter words (1 point): 62

AINE; AMEN; AMIE; AMIN; ANCE; ANES; CEDE; CEES; CELS; CODE; COED; DECO; DEEM; DEEN; DEES; DELE; DEME; DOCS; DOES; ECOD; EELS; EINA; EINE; ELSE; EMES; ENES; LEED; LEES; LEME; MAIM; MAIN; MANE; MANI; MEED; MEES; MEIN; MELS; MEME; MENE; MESE; MIEN; MIME; MINA; MINE; MZEE; NAME; NEED; NEEM; NEMA; ODES; SECO; SEED; SEEL; SEEM; SEEN; SEME; SEMI; SENA; SENE; SLEE; ZEES; ZELS.

5-letter words (2 points): 32

AIMED; AINEE; AMENE; AMINE; ANELE; ANIME; CEDES; CODES; DEMES; ELEMI; ELMEN; EMCEE; ENEMA; LEMAN; LEMED; LEMEL; LEMES; LENES; MANES; MENES; MIMED; MIMES; MINCE; MINES; MNEME; MZEES; NAMES; SCENA; SCENE; SEMEE; SEMEN; SEMIE.

6-letter words (3 points): 20

AMINES; ANELED; ANIMES; EMCEED; EMCEES; ENAMEL; ENCODE; EOCENE; INCEDE; LEMELS; MAIMED; MELENA; MINCED; MINCES; MNEMES; SECEDE; SEEMED; SEMEED; SEMEIA; SEMINA.

7-letter words (7 points): 4

ENAMELS; ENCODES; INCEDES; SEEDMEN.