43 words of 3 letters (1 points):APO; APT; ASP; BUS; BUT; FAP; FAS; FOP; FOU; IOS; ISO; OAF; OPS; OPT; OUS; OUT; PAP; PAS; PIR; PIS; PIU; POA; POI; POP; POS; PSI; PST; RIP; SAP; SIP; SIR; SIS; SOP; SOU; SPA; SUB; SUI; SUR; SUS; TUB; TUI; TUX; UTS.

35 words of 4 letters (1 points):APOS; APSO; APTS; BUST; BUTS; FAST; FOPS; FOUS; IRIS; OAST; OPTS; OUST; OUTS; PAPS; PAST; PISO; POAS; POIS; POPS; POST; POUT; PSIS; PTUI; RISP; SIRI; SIST; SOAP; SOFA; SOUS; SOUT; STUB; SUBS; SUSU; TUBS; TUIS.

9 words of 5 letters (2 points):APSIS; BUIST; FOIST; OASIS; PIOUS; POUTS; RISUS; SPOUT; STUBS.

3 words of 6 letters (3 points):ASPOUT; PAPIST; RIPOST.