Solutions :

3-letter words (1 point): 53

ACE; ACT; ARC; ARE; ART; CAR; CEE; CON; COO; COS; COT; EAR; ECO; ERA; EVE; EVO; HOC; HON; HOO; HOS; HOT; NOH; NOO; NOS; NOT; NTH; OCA; OHO; OHS; ONO; OOH; OON; OOS; OOT; REC; REE; REV; SOC; SOH; SON; SOT; SOV; TEC; TEE; THO; TIE; TOC; TON; TOO; TOT; VEE; VET; VIE.

4-letter words (1 point): 55

ACER; ACRE; ARCO; CARE; CART; CERT; COHO; COOS; COOT; COSH; COTE; COTH; COTT; COVE; CREE; ECOS; EVER; EVET; EVOS; HOON; HOOT; HOTE; HOVE; NOSH; NOTE; NOTT; OHOS; ONOS; ONTO; OOHS; OONT; OTTO; OVER; RACE; SHOO; SHOT; SOCA; SOHO; SOON; SOOT; SOTH; TEER; THON; TOHO; TOON; TOOT; TOSH; TOTE; TREE; VEER; VERA; VERT; VETO; VITE; VOTE.

5-letter words (2 points): 32

ACTON; COHOS; CONTO; COTHS; COVER; COVET; EARTH; EVERT; EVITE; HOOVE; HOVEA; HOVER; OCREA; OTTOS; OVERT; RACON; REACT; RECON; RECTO; REVET; REVIE; SHOON; SHOOT; SHOTE; SHOTT; SHOVE; SOOTE; SOOTH; TOHOS; TOOTH; TRACE; TRACT.

6-letter words (3 points): 14

CARTON; CONTRA; COOTIE; COTTON; COVERT; EARCON; EARTHS; HOOVER; RECTOS; REVOTE; SHOVER; SOVIET; TOOTHS; TREVET.

7-letter word (7 points): 1

OVERACT.