Solutions :

3-letter words (1 point): 46

DIT; DZO; EIK; ILK; IMP; ION; ISM; KEP; KIN; KIP; KIS; LID; LIE; LIN; LIP; LIS; LIT; LOR; MES; MIL; MIS; MIZ; NIE; NIL; NIM; NIP; NIS; NOR; OIL; PES; PIE; PIN; PIS; PSI; SEI; SIK; SIM; SIN; SIP; SKI; TID; TIL; ZIN; ZIP; ZIT; ZOL.

4-letter words (1 point): 55

DIOL; DITZ; EIKS; ILKS; INRO; KEMP; KEPI; KILN; KILO; KILP; KINO; KIPE; LIES; LIKE; LIME; LIMP; LINO; LION; LIPE; LISK; LISP; LOID; LORN; MEIN; MIKE; MILK; MILO; MINO; MISE; NIES; NOIL; OLID; OLPE; ONIE; PEIN; PIES; PIKE; PILI; PISE; PLIE; PLIM; ROIL; SEIK; SEIL; SEKT; SEMI; SIKE; SILK; SILO; SIMP; SIPE; SKEP; SKIM; SKIN; SKIP.

5-letter words (2 points): 17

KEPIS; KIPES; LIKES; LIMES; MIKES; MILKS; MILOR; MINOR; OLPES; ORNIS; PEKIN; PIKES; PLIES; ROZIT; SKEIN; SKIMP; SKLIM.

6-letter words (3 points): 2

IONISE; SEIZOR.

7-letter words (7 points): 2

LIONISE; LIONISM.