11-Letter Words Ending in IS

There are 123 11-letter words that end in IS. 17 are common words, such as AVOIRDUPOIS and HOMEOSTASIS. A rarer one is THERAPEUSIS. In this set, S is the most frequent open letter (92 words). 13 words contain a doubled letter.

Full list 123

Common words

avoirdupoishomeostasismegalopolisnecropoleisparenthesisperiphrasisperistalsisperitonitispharyngitispiccalillisprophylaxispsittacosis
avoirdupoishomeostasismegalopolisnecropoleisparenthesisperiphrasisperistalsisperitonitispharyngitispiccalillisprophylaxispsittacosistelekinesistonsillitistortellinistrichinosisvermicellisabiogenesisanadiplosisanagnorisisanaphylaxisanastomosisanthracosisantiphrasisantipyresisaponeurosisaposiopesisarchaeornisatelectasisautogenesisblepharitisbrucellosiscatachresiscenogenesiscertiorarischemosmosischoroiditiscoccidiosiscytogenesiscytokinesisdiaphoresisdiapophysisdiarthrosisenarthrosisenzymolysisesophagitisfrangipanisfrontolysisgamogenesisheterolysisheterotaxisholophrasishomogenesisichthyornisiconostasisjaguarundiskenogenesislumbricalismastoiditismetagenesismonogenesismutagenesismyocarditismyxomatosisoncogenesisosteoclasisparaphrasispediculosispedogenesisperiostitisphyllotaxisplasmolysispolygenesisprostatitisproteolysisradiculitisresynthesissalmagundissalpingitisspermacetisspondylitisstephanotisstereotaxissyndesmosisthanatopsisthermolysisthermotaxisthigmotaxisthyroiditistorticollisxenogenesiszymogenesisamyloidosisarthrodesisbarramundisbiocoenosiscandidiasischolestasiscoatimundisendocytosisendomitosisgynogenesishemopoiesishomozygosisjaguarondisketogenesiskinesthesislipogenesislisteriosismetanalysismillefiorismisanalysismisemphasisnatriuresisontogenesisparagenesisparasitosispinocytosispneumonitissarcoidosisscallopinisshigellosistherapeusis

About this list

Words
123 (17 common words)
Common example
avoirdupois
Rare example
therapeusis
Doubled letters
13
Ending in S
123
Most frequent letter
S (92)

Questions

How many 11-letter words ending in is are there?

123. 17 of them are common words.

What is a common example?

AVOIRDUPOIS is among the common words in this set.