13-Letter Words Matching _________ON__

There are 139 13-letter words that match _________ON__. 36 are common words, such as ARCHITECTONIC and BIDIRECTIONAL. A rarer one is ZOOPLANKTONIC. In this set, I is the most frequent open letter (123 words). 24 words contain a doubled letter.

Full list 139

Common words

architectonicbidirectionalcoeducationalcomputationalcongressionaldisillusioneddysfunctionalgravitationalinformationalinquisitionalinspirationalinstitutional
architectonicbidirectionalcoeducationalcomputationalcongressionaldisillusioneddysfunctionalgravitationalinformationalinquisitionalinspirationalinstitutionalinstructionalinternationalinterpersonalmalfunctionedmultinationalnonfunctionalnonvocationalobservationaloveremotionalprepositionalprogesteronespropositionalpropositionedreapportionedreconditionedrequisitionedsupranationaltestosteronestransnationalunconditionalunconditionedunexceptionalunintentionalvivisectionalandrosteronesarchidiaconalassociationalcompositionalcompressionalconfutationalconjugationalconjunctionalconnotationalconvocationalcorrelationaldeclinationaldispositionalexaminationalexpectationalhydrocarbonicimplicationalincantationalinscriptionalisoelectronicmetafictionalmethaqualonesmispositionedorientationalpermutationalphytohormonesprocreationalquadrillionthquintillionthreformationalrepartitionedrequisitionerspeakerphonessupernationalsuppositionaltransactionaltranslationalunimpassionedunsensationaluntraditionalabstractionalacquisitionalaggregationalarbitrationalattributionalbenzophenonesbiconditionalbourguignonnecalculationalcollocationalcombinationalcontractionaldeconditioneddeformationaldisfunctionalendosymbiontsexplorationalfluctuationalfurazolidoneshydroquinoneshyperrationalimmigrationalinclinationalinteractionalinterneuronalinterregionalintrapersonalmetallophonesmisfunctionedmultiregionalneurohormonalneurohormonesnonelectronicoscillationalovercautionedovipositionalparathormonespathognomonicpicturephonespolycistronicpolyembryonicpostembryonalpostembryonicposttensionedpostulationalprednisolonespreganglionicpregnenolonesprevocationalprogressionalrarefactionalreprovisionedseptentrionalspermatogoniasuperpersonalsuperregionalsuprarationalterminationalthunderstonestransfusionaltranspersonalultrarationalzooplanktonic

About this list

Words
139 (36 common words)
Common example
architectonic
Rare example
zooplanktonic
Doubled letters
24
Ending in S
17
Most frequent letter
I (123)

Questions

How many 13-letter words matching _________on__ are there?

139. 36 of them are common words.

What is a common example?

ARCHITECTONIC is among the common words in this set.