use '?' for JOKER (blank)

From letters W, E, A, T, H, E, R, B, O, A, R, D, S  I made following words

13 letter words

weatherboards[22]

12 letter words

weatherboard[21]

10 letter words

arrowheads[17], headwaters[17], waterheads[17], earthwards[17], threadbare[16], broadsheet[16], shortbread[16], shearwater[16], deaerators[11]

9 letter words

shewbread[18], washboard[18], showbread[18], arrowhead[16], hardwares[16], shoreward[16], headwater[16], waterhead[16], earthward[16], watershed[16], brothered[15], shareware[15], drawbores[15], wardrobes[15], waterbeds[15], wheatears[15], bestrowed[15], wreathers[15], seborrhea[14], breathers[14], rethreads[13], threaders[13], aberrated[12], adsorbate[12], teaboards[12], redbreast[12], starboard[12], heartsore[12], rosewater[12], deaerator[10]

8 letter words

beshadow[17], bowheads[17], hardware[15], harrowed[15], warheads[15], rewashed[15], shadower[15], reshowed[15], showered[15], shrewder[15], wreathed[15], towheads[15], barehead[14], abhorred[14], harbored[14], breathed[14], bothered[14], bethesda[14], breadths[14], drawbore[14], wardrobe[14], sowbread[14], drawbars[14], warhorse[14], reshower[14], showerer[14], waterbed[14], aweather[14], wheatear[14], wreather[14], bestowed[14], bedstraw[14], weathers[14], wreathes[14], throwers[14], rheobase[13], breather[13], breathes[13], sherbert[13], brothers[13], barwares[13], bestower[13], sorehead[12], adherers[12], hoarders[12], redhorse[12], rethread[12], threader[12], headrest[12], awardees[12], awarders[12], redwares[12], eastward[12], radwaste[12], dewaters[12], tarweeds[12], seaboard[11], abraders[11], adsorber[11], boarders[11], reboards[11], resorbed[11], teaboard[11], bartered[11], breasted[11], debaters[11], hetaeras[11], broadest[11], bestrode[11], seawater[11], teawares[11], waterers[11], arboreta[10], aerobats[10], rebaters[10], aborters[10], taborers[10], arrested[9], retreads[9], serrated[9], treaders[9], roadster[9], resorted[9], restored[9], aerators[8]

7 letter words

abashed[13], beheads[13], breadth[13], berthed[13], hotbeds[13], brasher[12], harbors[12], breathe[12], brother[12], adherer[11], reheard[11], hoarder[11], adheres[11], headers[11], hearsed[11], sheared[11], reshoed[11], herders[11], earthed[11], hearted[11], headset[11], abrader[10], arbored[10], boarder[10], broader[10], reboard[10], rebored[10], abrades[10], beaders[10], debaser[10], sabered[10], bedsore[10], sobered[10], darbars[10], hearers[10], rehears[10], shearer[10], borders[10], hoarser[10], berated[10], debater[10], rebated[10], tabered[10], hetaera[10], aborted[10], borated[10], tabored[10], bestead[10], debates[10], boasted[10], bastard[10], tabards[10], aerobes[9], bearers[9], arrobas[9], rasbora[9], arbores[9], rebores[9], soberer[9], aerobat[9], rebater[9], aborter[9], taborer[9], arrased[8], readers[8], redears[8], rereads[8], adorers[8], drosera[8], reredos[8], aerated[8], retread[8], treader[8], aerator[7]