11-Letter Words Starting With OP

There are 27 11-letter words that start with OP. 14 are common words, such as OPALESCENCE and OPENHEARTED. A rarer one is OPTOKINETIC. In this set, I is the most frequent open letter (21 words). 10 words contain a doubled letter.

Full list 27

Common words

opalescenceopenheartedoperationalopinionatedopportunelyopportunismopportunistopportunityoppositionsoppressionsopprobriousopprobriums
opalescenceopenheartedoperationalopinionatedopportunelyopportunismopportunistopportunityoppositionsoppressionsopprobriousopprobriumsoptometriesoptometristoperabilityoperativelyophthalmiasoptimizableoptionalityopenabilityopenmouthedoperagoingsoperculatedoperettistsoperosenessopsonifyingoptokinetic

About this list

Words
27 (14 common words)
Common example
opalescence
Rare example
optokinetic
Doubled letters
10
Ending in S
9
Most frequent letter
I (21)

Questions

How many 11-letter words starting with op are there?

27. 14 of them are common words.

What is a common example?

OPALESCENCE is among the common words in this set.