use '?' for JOKER (blank)

From letters F, I, E, L, D, S, T, R, I, P, P, I, N, G  I made following words

14 letter words

fieldstripping[23]

10 letter words

fieldstrip[16], fingertips[16], presifting[16], springtide[14], inspirited[13]

9 letter words

pilfering[15], prefiling[15], redipping[15], drippings[15], fingertip[15], driftpins[15], spindrift[15], lignified[14], nigrified[14], lippering[14], dignifies[14], signified[14], stippling[14], drippiest[14], grippiest[14], stripping[14], trippings[14], lignifies[13], nigrifies[13], signifier[13], presiding[13], liripipes[13], nitrified[13], filtering[13], despiting[13], fringiest[13], resifting[13], firstling[13], triflings[13], pipistrel[13], rippliest[13], pinstripe[13], spindlier[12], nitrifies[12], priesting[12], respiting[12], spiriting[12], springlet[12], stripling[12], dignities[11], delisting[11], dirigiste[11], relisting[10]

8 letter words

flipping[16], flippers[15], flippest[15], dripping[14], driftpin[14], ignified[13], defiling[13], fielding[13], rippling[13], lippings[13], slipping[13], tippling[13], drifting[13], tripping[13], digestif[13], dippiest[13], stippled[13], stepping[13], spitfire[13], stripped[13], refiling[12], liripipe[12], nidifies[12], ignifies[12], infidels[12], infields[12], flinders[12], flingers[12], riflings[12], springed[12], slippier[12], snippier[12], fileting[12], flirting[12], trifling[12], feltings[12], stifling[12], lippiest[12], nippiest[12], presplit[12], ripplets[12], stippler[12], tipplers[12], periling[11], speiling[11], spieling[11], inspired[11], speiring[11], spiering[11], spindler[11], flintier[11], intrepid[11], tripling[11], splinted[11], pestling[11], filister[11], riptides[11], spirited[11], tiderips[11], gripiest[11], dispirit[11], sprinted[11], spirting[11], striping[11], sideling[10], desiring[10], residing[10], ringside[10], diligent[10], dingiest[10], ridgiest[10], stringed[10], striding[10], pristine[10], inspirit[10], splinter[10], resiling[9], riesling[9], glintier[9], retiling[9], tinglier[9], lignites[9], lingiest[9], girliest[9], disinter[9], inditers[9], nitrides[9], igniters[9], resiting[9], stingier[9], tendrils[9], trindles[9], ringlets[9], sterling[9], tinglers[9], nitriles[8]

7 letter words

flipped[15], flipper[14], fipples[14], dipping[13], gripped[13], nippled[12], lipping[12], fringed[12], dippier[12], rippled[12], gripple[12], repping[12], ripping[12], slipped[12], snipped[12], pigpens[12], pipings[12], sipping[12], fridges[12], infidel[11], infield[11], flinder[11], flinger[11], rifling[11], priding[11], lippier[11], nippier[11], selfing[11], filings[11], gipsied[11], pidgins[11], lippens[11], nipples[11], lipides[10], peising[10], insipid[10], spindle[10], splined[10], lisping[10], pilings[10], sliping[10], spiling[10], eliding[9], dingier[9], dirling[9], ripieni[9], dingies[9], dingles[9], engilds[9], singled[9], sidling[9], sliding[9], splenii[9], lingier[8], lindies[8]