12 Letter Words Starting with O and Containing NS

When you need a list of 12 letter words that start with O and contain NS, who you gonna call? WordList Finder! Word lists exactly like these 12 letter words are only a few quick finger taps away on our site. Dive into words that start with O or words with NS to find some more options — if you're feeling a little flexible.

12 letter words
oarsmanships
obfuscations
objurgations
obliquations
obscurations
obsecrations
observations
obsignations
obstipations
obstrictions
obstructions
obtestations
obumbrations
occultations
octastichons
officiations
onomasticons
orchestrions
orientations
originations
orthocousins
orthopterans
oscillations
ostentations
overburthens
overcautions
overconcerns
overconsumed
overconsumes
overexplains
overinsuring
oversweetens
overtightens
ovipositions
oxidisations
oxidizations
oxygenations
oxyhydrogens
ozonisations
ozonizations