13-Letter Words Containing OPT

There are 20 13-letter words that contain OPT. 3 are common words, such as HELICOPTERING and OPTIMIZATIONS. A rarer one is TRICHOPTERANS. In this set, S is the most frequent open letter (18 words). 0 words contain a doubled letter.

Full list 20

helicopteringoptimizationsoveroptimismsarchaeopteryxheteropteroushymenopteranshymenopterouslepidopteranslepidopteristlepidopterouscoleopteristshymenopteronsoptimisationsoptionalitiesorthopteristsorthopteroidsoveroptimistsstereopticonssuboptimizingtrichopterans

About this list

Words
20 (3 common words)
Common example
helicoptering
Rare example
trichopterans
Doubled letters
0
Ending in S
16
Most frequent letter
S (18)

Questions

How many 13-letter words containing opt are there?

20. 3 of them are common words.

What is a common example?

HELICOPTERING is among the common words in this set.