use '?' for JOKER (blank)

From letters S, A, B, O, T, E, U, R  I made following words

8 letter words

saboteur[10]

7 letter words

boaster[9], boaters[9], borates[9], rebatos[9], sorbate[9], arbutes[9], bursate[9], abortus[9], robusta[9], rubatos[9], tabours[9], obtuser[9]

6 letter words

boreas[8], boater[8], borate[8], rebato[8], barest[8], baster[8], breast[8], tabers[8], aborts[8], boarts[8], tabors[8], sorbet[8], strobe[8], abuser[8], bursae[8], bourse[8], arbute[8], rubato[8], tabour[8], beauts[8], buteos[8], obtuse[8], brutes[8], burets[8], buster[8], rebuts[8], tubers[8], robust[8], turbos[8], oaters[6], orates[6], osetra[6], arouse[6], urates[6], ouster[6], outers[6], routes[6], souter[6], stoure[6]

5 letter words

bares[7], baser[7], bears[7], braes[7], saber[7], sabre[7], boars[7], boras[7], bores[7], brose[7], robes[7], sober[7], taber[7], abort[7], boart[7], tabor[7], abets[7], baste[7], bates[7], beast[7], beats[7], betas[7], tabes[7], boast[7], boats[7], botas[7], sabot[7], besot[7], brats[7], borts[7], abuse[7], beaus[7], bouse[7], buras[7], bursa[7], burse[7], rebus[7], rubes[7], suber[7], beaut[7], tubae[7], about[7], buteo[7], brute[7], buret[7], rebut[7], tuber[7], turbo[7], abuts[7], tabus[7], tsuba[7], tubas[7], butes[7], tubes[7], bouts[7], bruts[7], burst[7], arose[5], oater[5], orate[5], stoae[5], toeas[5], aster[5], rates[5], resat[5], stare[5], tares[5], tears[5], ratos[5], roast[5], rotas[5], sorta[5], taros[5], toras[5], roset[5], rotes[5], store[5], tores[5], torse[5], aures[5], urase[5], ureas[5], ursae[5], euros[5], roues[5], rouse[5], urate[5], outer[5], outre[5], route[5], saute[5], autos[5], touse[5], sutra[5], trues[5], roust[5], routs[5], stour[5], torus[5], tours[5]

4 letter words

bare[6], bear[6], brae[6], boar[6], bora[6], bore[6], robe[6], base[6], sabe[6], abos[6], boas[6], obas[6], soba[6], obes[6], arbs[6], bars[6], bras[6], rebs[6], bros[6], orbs[6], robs[6], sorb[6], abet[6], bate[6], beat[6], beta[6], boat[6], bota[6], brat[6], aero[4], ares[4], arse[4], ears[4], eras[4], rase[4], sear[4], sera[4], oars[4], osar[4], soar[4], sora[4], eros[4], ores[4], roes[4], rose[4], sore[4], toea[4], rate[4]