Solutions :

3-letter words (1 point): 59

ABS; AHS; ASH; ASP; BAH; BAP; BAS; EAS; EHS; EMO; EMS; EMU; EVO; HAE; HAP; HAS; HEH; HEM; HES; HUE; HUH; HUM; IMP; ISH; ISM; MEM; MES; MEU; MIR; MIS; MIZ; MOM; MOO; MOZ; OMS; OOM; PAH; PAS; PIR; PIS; PSI; RIM; RIP; RIZ; SAB; SAE; SAP; SEA; SHA; SHE; SHH; SIM; SIP; SIR; SPA; UMM; VUM; ZIP; ZOO.

4-letter words (1 point): 52

AHEM; APSE; BAPS; BASE; BASH; EMIR; HAEM; HAES; HAPS; HASP; HEAP; HEHS; HEMP; HEMS; HESP; HUES; HUMS; IMPS; ISBA; MEMO; MEMS; MESA; MESH; MIPS; MISE; MOME; MOMI; MOMS; MOVE; OMOV; OOMS; OVUM; PAHS; PASE; PASH; PISE; PISH; RIME; RIMS; RIPS; RISE; RISP; SEMI; SHEA; SIMP; SMIR; SPAE; SPIM; UVEA; VUMS; ZIPS; ZOOM.

5-letter words (2 points): 13

AESIR; APISH; APISM; HAEMS; HEAPS; HEMPS; MOMES; MOOVE; MOVES; RIMES; UVEAS; VESPA; ZOOMS.

6-letter words (3 points): 5

IMMESH; MISHAP; MOOVES; OOMPAH; SIMOOM.

7-letter words (7 points): 2

MISMOVE; OOMPAHS.