15-Letter Words Matching __O___________S

There are 106 15-letter words that match __O___________S. 29 are common words, such as AMORPHOUSNESSES and AROMATHERAPISTS. A rarer one is TROUBLOUSNESSES. In this set, I is the most frequent open letter (87 words). 42 words contain a doubled letter.

Full list 106

Common words

amorphousnessesaromatherapistsbiotechnologiesbloodlessnessesbrotherlinessescooperativenessegocentricitiesfoolhardinessesgeoengineeringsgrotesquenessesgroundbreakingsinoffensiveness
amorphousnessesaromatherapistsbiotechnologiesbloodlessnessesbrotherlinessescooperativenessegocentricitiesfoolhardinessesgeoengineeringsgrotesquenessesgroundbreakingsinoffensivenessneocolonialismsneocolonialistsphotoengravingsphotofinishingsprocrastinatorsprofitabilitiesprognosticatorsprogressivenessprohibitionistsproprietorshipsprovocativenessreorganizationsthoughtlessnesstroubleshootersunobtrusivenesswholesomenesseswrongheadednessanomalousnessesbioastronauticsbioengineeringsbioremediationsbroadmindednesscholecystitideseconometriciansgeomorphologiesgoodheartednessinopportunenessodoriferousnessphosphoproteinsphotosensitizesprogressivitiesprohibitivenesspromiscuousnesspronunciamentosproprioceptionsprostatectomiestoothsomenessesanonymousnessesapocalypticismsapolipoproteinsbiodegradationsbiogeochemicalsbiosystematistsbloodguiltinessbronchodilatorsbronchoscopistscholecystitisescholestyraminescholinesteraseschondrocraniumschordamesodermschorioallantoiscloudlessnessescooperationistscrotchetinessesecocatastrophesecophysiologiesemotionlessnessevocativenessesexothermicitiesfloriculturistsfloriferousnessgeochronologiesgeohydrologistsgeometrizationsinoperativenesslyophilizationsphotoautotrophsphotobiologistsphotoduplicatesphotogeologistsphotoinductionsphotooxidationsphotoperiodismsphotoreceptionsphotoreductionsphototoxicitiesproletarianisesproletarianizespromotabilitiespromotivenessesprosopographiesprosthodontistsprotohistoriansprotoporphyrinsprotozoologistsprovincialitiesproximatenessesspontaneousnesssporangiophoresstockbrokeragesstoichiometriestroublesomenesstroublousnesses

About this list

Words
106 (29 common words)
Common example
amorphousnesses
Rare example
troublousnesses
Doubled letters
42
Ending in S
106
Most frequent letter
I (87)

Questions

How many 15-letter words matching __o___________s are there?

106. 29 of them are common words.

What is a common example?

AMORPHOUSNESSES is among the common words in this set.