use '?' for JOKER (blank)

From letters B, A, C, K, S, T, I, T, C, H, I, N, G  I made following words

13 letter words

backstitching[27]

10 letter words

backstitch[23], nightstick[20], tictacking[19]

9 letter words

skintight[17], stitching[15], antistick[15], canthitis[14]

8 letter words

shacking[18], thacking[18], backings[17], bigstick[17], batching[16], catching[16], bitching[16], batiking[15], chiastic[15], stacking[15], sticking[15], tickings[15], habiting[14], scathing[14], itchings[14], chatting[14], inhabits[13], chiantis[13], shitting[12], tithings[12], battings[11], scatting[11], bittings[11]

7 letter words

schtick[18], hacking[17], bacchii[16], backing[16], bhaktis[16], baching[15], caching[15], shaking[15], kithing[15], knights[15], bakings[14], basking[14], casking[14], sacking[14], sicking[14], tacking[14], ticking[14], stichic[14], kitbags[14], bashing[13], cashing[13], chasing[13], bathing[13], gnathic[13], itching[13], bankits[13], anticks[13], catkins[13], battiks[13], stickit[13], siccing[12], ticcing[12], inhabit[12], chianti[12], absinth[12], chitins[12], skating[12], staking[12], takings[12], tasking[12], skiting[12], kitting[12], cattish[12], tachist[12], actinic[11], ascitic[11], sciatic[11], hasting[11], histing[11], insight[11], kainits[11], hatting[11], hitting[11], tithing[11], tactics[11], tictacs[11], biasing[10], baiting[10], basting[10], actings[10], casting[10], tahinis[10], batting[10], catting[10], bitting[10], titanic[9], stating[8], tasting[8], sitting[8], titians[7]

6 letter words

chicks[17], chinks[15], bhakti[15], thacks[15], kitsch[15], schtik[15], shtick[15], thicks[15], hiking[14], knight[14], baking[13], caking[13], biking[13], chicas[13], kitbag[13], thanks[13], thinks[13], aching[12], bhangs[12], changs[12], bankit[12], antick[12], catkin[12], bights[12], batiks[12], battik[12], ischia[11], banish[11], chains[11], chinas[11], asking[11], gaskin[11], kiangs[11], skiing[11], canthi[11], chitin[11], taking[11], kiting[11], habits[11], chants[11], snatch[11], stanch[11], chints[11], snitch[11], tsking[11], stitch[11], acinic[10], cabins[10], siccan[10], ashing[10], cantic[10], hating[10], kainit[10], nights[10], things[10], takins[10], tactic[10], tictac[10], tights[10], basing[9], casing[9], icings[9], bating[9], acting[9], biting[9], citing[9], tahini[9], haints[9], shanti[9], anisic[8], casini[8], tibias[8], actins[8], antics[8], nastic[8], binits[8], intact[8], attics[8], static[8], tincts[8], gainst[7], giants[7], sating[7], siting[7], gittin[7], isatin[6], titian[6], statin[6], taints[6], tanist[6], titans[6]

5 letter words

chick[16], chica[12], bhang[11], chang[11], chain[10], china[10], cabin[9], acing[8]