12-Letter Words Containing OPA

There are 36 12-letter words that contain OPA. 15 are common words, such as CYCLOPAEDIAS and EPISCOPACIES. A rarer one is OPALESCENTLY. In this set, I is the most frequent open letter (30 words). 3 words contain a doubled letter.

Full list 36

Common words

cyclopaediasepiscopacieshomeopathiesjeopardizingleopardessesopalescencesopaquenessesorthopaedicsorthopaedistosteopathiespropagandistpropagandize
cyclopaediasepiscopacieshomeopathiesjeopardizingleopardessesopalescencesopaquenessesorthopaedicsorthopaedistosteopathiespropagandistpropagandizepropagationspsychopathicsyncopationsallelopathiccyclopropaneectoparasiteendoparasiteepiscopalianepiscopalismhomeopathisthydropathieshydropathistisopropanolsnaturopathicpropaedeuticpropagandismcopartneringdopaminergicjeopardisingmagnetopausemyelopathiesnephropathicneuropathiesopalescently

About this list

Words
36 (15 common words)
Common example
cyclopaedias
Rare example
opalescently
Doubled letters
3
Ending in S
14
Most frequent letter
I (30)

Questions

How many 12-letter words containing opa are there?

36. 15 of them are common words.

What is a common example?

CYCLOPAEDIAS is among the common words in this set.