use '?' for JOKER (blank)

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

8 letter words

assentor[8], santeros[8], senators[8], starnose[8], treasons[8]

7 letter words

reasons[7], senoras[7], atoners[7], santero[7], senator[7], treason[7], sarsnet[7], osetras[7], ossetra[7], nestors[7], stoners[7], tensors[7]

6 letter words

arseno[6], reason[6], senora[6], season[6], sarsen[6], snares[6], serosa[6], arsons[6], sonars[6], senors[6], sensor[6], snores[6], atoner[6], ornate[6], atones[6], antres[6], astern[6], sterna[6], oaters[6], orates[6], osetra[6], tronas[6], nestor[6], noters[6], stoner[6], tenors[6], tensor[6], toners[6], trones[6], assent[6], sanest[6], stanes[6], santos[6], onsets[6], setons[6], stenos[6], stones[6], assert[6], asters[6], stares[6], sterns[6], assort[6], roasts[6], rosets[6], sorest[6], stores[6], torses[6], tosser[6], tsores[6], snorts[6]

5 letter words

aeons[5], earns[5], nares[5], nears[5], saner[5], snare[5], arose[5], arson[5], roans[5], sonar[5], senor[5], snore[5], sanes[5], sensa[5], oases[5], noses[5], sones[5], arses[5], rases[5], sears[5], saros[5], soars[5], soras[5], roses[5], sores[5], sorns[5], atone[5], oaten[5], antre[5], oater[5], orate[5], trona[5], noter[5], tenor[5], toner[5], trone[5], antes[5], etnas[5], nates[5], neats[5], stane[5], stoae[5], toeas[5], santo[5], notes[5], onset[5], seton[5], steno[5], stone[5], tones[5], aster[5], rates[5], resat[5], stare[5], tares[5], tears[5], rants[5], tarns[5], trans[5], nerts[5], rents[5], stern[5], terns[5], ratos[5], roast[5], rotas[5], sorta[5], taros[5], toras[5], roset[5], rotes[5], store[5], tores[5], torse[5], snort[5], asset[5], easts[5], sates[5], seats[5], tasse[5], nests[5], oasts[5], stoas[5], snots[5], stars[5], trass[5], tsars[5], rests[5], tress[5], sorts[5]

4 letter words

aeon[4], earn[4], near[4], aero[4], roan[4], anes[4], sane[4], naos[4], eons[4], noes[4], nose[4], ones[4], sone[4], ares[4], arse[4], ears[4], eras[4], rase[4], sear[4], sera[4], erns[4], oars[4], osar[4], soar[4], sora[4], eros[4], ores[4], roes[4], rose[4], sore[4], sorn[4], seas[4], sans[4], ness[4], ossa[4], oses[4], sons[4], sers[4], ante[4], etna[4], neat[4], toea[4], nota[4]