9 letters
- historian12
- honouring16
- ibogaines15
- ignitions13
- ignitrons13
- ignoramus16
- iguanians14
- iguanodon15
- imbruting19
- inactions14
- incaution15
- incognita16
- incognito16
- incubator17
- incursion15
- indagator13
- indorsing14
- inebriant14
- ingenious14
- ingestion13
- innovator15
- inorganic16
- inpouring17
- inserting13
- insertion11
- insinuate12
- insnaring14
- insouling15
- instating13
- insulator12
- insulting15
- insurants12
- insurgent14
- intaglios13
- intarsias10
- intombing19
- intorting13
- intrigant13
- intrigues13
- intruding15
- intrusion12
- inundator13
- invariant15
- iodations11
- ironbound16
- ironizing22
- ironstone11
- isobutane14
- isolating13
- isolation11
- kangaroos16
- laborious14
- labouring17
- lariating13
- libations14
- librating16
- libration14
- ligations13
- lobations14
- longboats16
- lunarians13
- lunations13
- maintains14
- manganous17
- marabouts16
- marooning16
- martagons15
- migration15
- misrating15
- mistuning17
- monitions14
- monsignor16
- mortising15
- motioning16
- motorings15
- mountains15
- mountings17
- mournings17
- munitions15
- nanograms16
- narrating13
- narration11
- natations11
- nationals12
- navigator16
- negations13
- negatrons13
- neutrinos12
- nicotiana14
- nigrosins13
- nitrating13
- nitration11
- nitrogens13
- nominator14
- nonactors14
- nonartist11
- nonauthor14
- nonbiting17
- nonguilts15
- nonsugars14
- northings15
- nostalgia13
- notarizes19
- notations11
- notorious11
- novations15
- nutations12
- nutrition12
- oblations14
- obligatos15
- obscurant17
- obscuring19
- obtainers13
- obtaining16
- obtruding17
- obtrusion14
- obtunding18
- obviating19
- obviation17
- obviators16
- odorizing22
- oligurias13
- onanistic14
- onrushing16
- optioning16
- orangiest12
- orangutan14
- ordaining14
- organists12
- organizes21
- organzine22
- orgiastic14
- oribatids13
- orienting13
- origanums16
- originals13
- originate12
- osnaburgs16
- outasking17
- outbaking20
- outboards14
- outboxing23
- outdaring14
- outfiring16
- outgoings15
- outlining15
- outracing16
- outraging15
- outranges13
- outrating13
- outraving17
- outriding14
- outrowing16
- ozonating22
- ozonation20
- ozonising22
- ozonizing31
- pagurians16
- paintings16
- partizans22
- pastoring15
- pasturing16
- poisoning16
- posturing16
- printings16
- prisoning16
- probating18
- probation16
- pronating16
- pronation14
- punitions15
- purgation16
- quantongs23
- quatrains20
- quintains21
- rabbiting18
- radiating13
- radiation11
- ragouting15
- rainbands15
- raincoats13
- rainspout14
- rambutans17
- ransoming16
- rationals11
- rationing13
- ratooning13
- reanoints11
- reasoning13
- rebaiting15
- rebooting15
- reobtains13
- retaining13
- reuniting14
- ribboning19
- rigadoons13
- rigatonis12
- rigaudons14
- ringbolts16
- ringbones16