13-Letter Words Matching ______OS_____

There are 64 13-letter words that match ______OS_____. 20 are common words, such as BELLICOSITIES and DECOMPOSITION. A rarer one is URETHROSCOPES. In this set, E is the most frequent open letter (53 words). 5 words contain a doubled letter.

Full list 64

Common words

bellicositiesdecompositionelectroscopeselectroscopicelectroshockselectrostaticgrandiositiesimpetuositiesindispositioninterpositionjuxtapositionkaleidoscopes
bellicositiesdecompositionelectroscopeselectroscopicelectroshockselectrostaticgrandiositiesimpetuositiesindispositioninterpositionjuxtapositionkaleidoscopeskaleidoscopicmonstrositiesoscilloscopesspectroscopesspectroscopicsuperpositiontranspositiontyrannosaurusmagnetosphereapotheosizingasthenospherebasidiosporesbrachiosaurusbronchoscopescerebrospinalglutinositiesgrandiosenesshieracosphinxhypophosphatehypophosphiteichthyosauruslaryngoscopesmetaphosphatemicrocosmicaloscilloscopicponderositiespyrophosphatereligiositiesbronchoscopicbronchospasmscephalosporindeuterostomesgalactosaminegalactosemiasgalactosidasegalvanoscopesincuriositiesmagnetostaticmicrocosmosesmultihospitalnondepositionnonhomosexualphotopositivepteridospermsrecompositionredispositionschistositiessiphonostelesstrenuositiessynchroscopesteleutosporesurethroscopes

About this list

Words
64 (20 common words)
Common example
bellicosities
Rare example
urethroscopes
Doubled letters
5
Ending in S
32
Most frequent letter
E (53)

Questions

How many 13-letter words matching ______os_____ are there?

64. 20 of them are common words.

What is a common example?

BELLICOSITIES is among the common words in this set.