List of 12-letter words containing FF

AFFECTATIONS AFFECTEDNESS AFFECTIONATE AFFILIATIONS AFFINITATIVE AFFIRMATIONS AFFIRMATIVES AFFLICTINGLY AFFLICTIVELY AFFLUENTNESS AFFORESTABLE AFFORESTMENT AFFRANCHISED AFFRIGHTEDLY AFFRIGHTMENT AFFRONTINGLY AFTEREFFECTS ALLOCAFFEINE ANTIDIFFUSER ANTISUFFRAGE BAFFLINGNESS BUFFLEHEADED BUFFOONERIES BUFFOONESQUE CHAUFFEURING CHIFFONNIERS CHROMAFFINIC CLIFFHANGERS CLIFFHANGING COEFFICIENTS COFFEEGROWER COFFEEHOUSED COFFEEHOUSES COFFINMAKING COUNTEROFFER COUNTERSCOFF DAFFADILLIES DAFFODILLIES DECAFFEINATE DECAFFEINIZE DEMIOFFICIAL DIFFAREATION DIFFERENCING DIFFERENTIAE DIFFERENTIAL DIFFICULTIES DIFFRACTIONS DIFFRANCHISE DIFFRANGIBLE DIFFUSEDNESS DIFFUSIMETER DIFFUSIONISM DIFFUSIONIST DISAFFECTING DISAFFECTION DISAFFILIATE DISAFFIRMING EFFECTUALITY EFFECTUALIZE EFFECTUATING EFFECTUATION EFFEMINATELY EFFEMINATING EFFEMINATION EFFEMINATIZE EFFEMINISING EFFEMINIZING EFFERVESCENT EFFERVESCING EFFERVESCIVE EFFICIENCIES EFFIGURATION EFFLORESCENT EFFLORESCING EFFLUVIVIUMS EFFORTLESSLY EFFRONTERIES EFFUMABILITY EFFUSIOMETER EFFUSIVENESS ENCOFFINMENT EXSUFFLATION EXSUFFLICATE FEEDINGSTUFF FISTICUFFERY FISTICUFFING GERSDORFFITE GRIFFINESQUE HASENPFEFFER HIPPOGRIFFIN INAFFABILITY INDIFFERENCE INDIFFERENCY INEFFABILITY INEFFACEABLE INEFFACEABLY INEFFECTIBLE INEFFECTIBLY INEFFICACITY INEFFICIENCE INEFFICIENCY INOFFICIALLY INSUFFERABLE INSUFFERABLY INSUFFICIENT INSUFFLATING INSUFFLATION INTERDIFFUSE INTERTRAFFIC JEFFERSONIAN JEFFERSONITE LANGSDORFFIA MISAFFECTION NONAFFECTING NONAFFECTION NONAFFECTIVE NONCAFFEINIC NONDIFFICULT NONDIFFIDENT NONDIFFUSING NONDIFFUSION NONEFFECTIVE NONEFFICIENT NONOFFENSIVE NONOFFICINAL OFFENDEDNESS OFFENSEPROOF OFFICEHOLDER OFFICIALIZED OFFSCOURINGS OVERAFFECTED OVERDIFFUSED OVEREFFUSIVE PARAFFINIZED PECKSNIFFERY PECKSNIFFIAN PECKSNIFFISM PFEIFFERELLA PREAFFECTION PREAFFIDAVIT PREAFFILIATE PREAFFIRMING PREDIFFERENT PREEFFECTIVE PREEFFECTUAL PREOFFENSIVE PRESUFFERING QUARTERSTAFF RAFFAELESQUE RAGAMUFFINLY REAFFILIATED REAFFIRMANCE RESUFFERANCE SCAFFOLDINGS SELFEFFACING SEMIBOUFFANT SEMIOFFICIAL SHUFFLEBOARD SNIFFISHNESS SNUFFCOLORED SPIFFLICATED SPITTLESTAFF STAFFSTRIKER STIFFHEARTED STRAFFORDIAN SUBAFFLUENCE SUBEFFECTIVE SUFFICIENTLY SUFFLAMINATE SUFFRAGANATE SUFFRAGATORY SUFFRAGETTES SUFFRAGISTIC SUFFRUTICOSE SUFFRUTICOUS SUFFUMIGATED TANNOCAFFEIC TARTUFFISHLY UNAFFABILITY UNAFFECTEDLY UNAFFILIATED UNAFFLICTING UNAFFLICTION UNAFFORDABLE UNAFFRIGHTED UNBAFFLINGLY UNDERBAILIFF UNDEROFFICER UNDERSHERIFF UNDERSTAFFED UNDIFFRACTED UNDIFFUSIBLE UNEFFACEABLE UNEFFACEABLY UNEFFECTIBLE UNEFFECTLESS UNEFFEMINATE UNEFFETENESS UNEFFIGIATED UNEFFUSIVELY