use '?' for JOKER (blank)

From letters X, E, N, O, P, H, O, B, I, C, A, L, L, Y  I made following words

14 letter words

xenophobically[33]

10 letter words

xenophobic[26], explicably[26], xenophobia[24], phonically[20], allophonic[17]

9 letter words

xylophone[24], lyophobic[21], epochally[19], halocline[14], allophone[14]

8 letter words

oxyphile[23], epicalyx[22], biphenyl[18], phenylic[18], copyable[17], ballyhoo[16], lyophile[16], hyponoia[16], cephalin[15], phenolic[15], pinochle[15], billycan[15], epically[15], polyenic[15], coalhole[13], aphelion[13], phelonia[13], alpinely[13], bioclean[12], coinable[12], calliope[12], colonial[10]

7 letter words

hypoxic[24], hexylic[22], hypoxia[22], oxyphil[22], phenoxy[22], hellbox[19], phoenix[19], coalbox[18], pillbox[18], cheaply[17], ciphony[17], lexical[16], lexicon[16], explain[16], hyaenic[15], halcyon[15], hyponea[15], phonily[15], chaebol[14], phallic[14], planche[14], epochal[14], bellhop[14], panoche[14], aphonic[14], hipbone[14], chopine[14], phocine[14], hencoop[14], callboy[14], balcony[14], clypeal[14], pliably[14], pliancy[14], epiboly[14], placebo[13], hyaline[13], challie[12], helical[12], lochial[12], chalone[12], hobnail[12], choline[12], helicon[12], alcohol[12], pinhole[12], cleanly[12], baloney[12], acyloin[12], boloney[12], penally[12], plainly[12], loopily[12], coalbin[11], binocle[11], pliable[11], biplane[11], capelin[11], panicle[11], pelican[11], pinball[11], apnoeic[11], noplace[11], pinocle[11], pleonic[11], poblano[11], hellion[10], oilhole[10], alienly[10], loonily[10], linable[9], lobelia[9], balloon[9], colonel[9], opaline[9], pleonal[9]

6 letter words

icebox[17], phobic[15], lexica[15], axenic[15], oxalic[15], bollix[15], anoxic[15], axonic[15], exonic[15], claxon[15], bleach[13], blanch[13], blench[13], chapel[13], pleach[13], caliph[13], pechan[13], painch[13], planch[13], plench[13], cheapo[13], phobia[13], chopin[13], phonic[13], poncho[13], alexin[13], xenial[13], habile[11], heliac[11], chaine[11], lichen[11], lochia[11], cholla[11], lochan[11], ochone[11], phalli[11], phonal[11], holpen[11], phenol[11], hoopla[11], beacon[10], bonaci[10], colobi[10], epical[10], plaice[10], plicae[10], plical[10], apneic[10], caplin[10], pencil[10], police[10], collop[10], inhale[9], hilloa[9], enhalo[9], hoolie[9], halloo[9], holloa[9], alible[8], labile[8], liable[8], inlace[8], clinal[8], obelia[8], locale[8], collie[8], ocelli[8], aeonic[8], albino[8], alnico[8], oilcan[8], cineol[8], enolic[8], ballon[8], clonal[8], billon[8], blooie[8], coolie[8], colone[8], coloni[8], alpine[8], penial[8], pineal[8], pinole[8], pollen[8], apollo[8], lienal[6], lineal[6], eolian[6], niello[6], loonie[6]