14-Letter Words Matching __________O__S

There are 72 14-letter words that match __________O__S. 7 are common words, such as CONQUISTADORES and LAUGHINGSTOCKS. A rarer one is UREDINIOSPORES. In this set, E is the most frequent open letter (60 words). 13 words contain a doubled letter.

Full list 72

Common words

conquistadoreslaughingstocksmetempsychosesmetempsychosispsychoneurosespsychoneurosissteppingstonesamphiarthrosiscarcinomatosiscontrabassoonscounterstrokesdexamethasones
conquistadoreslaughingstocksmetempsychosesmetempsychosispsychoneurosespsychoneurosissteppingstonesamphiarthrosiscarcinomatosiscontrabassoonscounterstrokesdexamethasonesdextroglucosesdiverticulosesdiverticulosisexophthalmoseshistoplasmosishyperkeratosismucoviscidosisphylloquinonespneumoconiosespneumoconiosistachistoscopesthyrotoxicosesthyrotoxicosisallopolyploidsanthraquinonesautopolyploidsbenzimidazolesbutyrophenonescarcinomatoseschlamydosporeschromatophoresclaustrophobescomputerphobescontainerportsconversazionescountereffortscounterreformscryptococcosescryptococcosiscyclohexanonesechinococcosesechinococcosiselectroosmoseselectroosmosishemicellulosesheterokaryosesheterokaryosishistoplasmoseshyperkeratosesimprovisatoresisochromosomeslymphosarcomasmetronidazolesneuroblastomasnonchurchgoersnorethindronespaedomorphosespaedomorphosisplastoquinonespneumatophoresspermatophoressporotrichosessporotrichosissupervirtuososthiabendazolesthunderstrokestreponematosestreponematosistriamcinolonesurediniospores

About this list

Words
72 (7 common words)
Common example
conquistadores
Rare example
urediniospores
Doubled letters
13
Ending in S
72
Most frequent letter
E (60)

Questions

How many 14-letter words matching __________o__s are there?

72. 7 of them are common words.

What is a common example?

CONQUISTADORES is among the common words in this set.