Mammoth Uncensored Word List:
256 words ending with is, 6 letters long

aaliis aartis abatis adonis adukis agamis agutis aiolis alibis animis appuis arabis ardris assais atigis azukis bajris baltis bambis bastis bennis bestis bhajis bialis bindis blinis boccis braais brewis bustis bwazis caddis capris cardis cassis caulis ceilis cercis cerris chilis cholis clavis clevis clovis cnemis coatis combis commis corgis coulis crasis crisis cullis cuspis cyesis cypris darzis dashis debris deixis dermis derris dhobis dhotis dhutis diesis dillis durzis ecesis elchis elemis emesis emojis ennuis enokis enosis envois epulis exomis factis fascis fermis ferris filmis follis fortis fundis gaddis ghazis giblis glacis gnosis gratis guslis hachis hadjis haggis hajjis hangis hikois hongis houris hubris hybris iberis imaris indris iridis iritis isseis jaspis jinnis kalpis kanjis karris kattis kauris kermis khadis khakis khazis kibbis kibeis kikois kirris kooris koumis krubis kukris kulfis laaris lanais lassis lathis lichis lungis lurgis majlis mandis mantis maquis marris matais mauris mejlis miosis missis moolis morris muftis murris murtis myasis myosis myotis nashis nebris nereis ngatis niseis nkosis noesis okapis orchis orexis oribis otitis oxalis ozekis pagris palais palkis parkis parvis pastis patois pelvis pennis perais phasis physis pieris pirais poleis pooris praxis ptosis ptyxis punjis putois pyosis rabbis rachis rahuis rangis raphis reikis rhexis rishis roshis rostis sakais salmis sampis satais sensis sepsis serais shchis shiais shogis shojis spahis stasis sushis swamis syrtis tabbis takhis tallis tangis tawais tennis tenuis terais testis tetris thagis thalis thesis tmesis travis trevis tsadis tsoris tsuris turkis tussis tuttis tzuris ugalis ulitis ulosis umamis unguis uralis uraris uresis urosis vendis vermis werris whosis wongis zimbis zombis