12 Letter Words Starting with O and Containing ION

12 letter words that start with O and contain ION can set you on the path to victory in word games like Scrabble® or Words With Friends®. Word lists exactly like these 12 letter words are only a few quick finger taps away on WordFinder®. Dive into words that start with O or words with ION to find your next super high-scoring play.

Words With Friends®

Points

Sort by

12 Letter Word List

ozonizations
opinionizing
objurgations
optimization
opsonization
organization
oxygenations
occupational
overexertion
overtaxation
obfuscations
occasionally
overambition
obnubilation
officiations
occultations
opinionative
overcautions
obligational
obscurations
observations
obstructions
opinionising
oppositional
overreaction
ovipositions
obsecrations
operationism
optimisation
ossification
outmigration
orchestrions
oscillations
obliteration
opsonisation
operationist
organisation
originations
orientations
ostentations

40 of 40 words

Popular 12 letter word lists starting with O and containing ION

SCRABBLE® and WORDS WITH FRIENDS® are the property of their respective trademark owners. These trademark owners are not affiliated with, and do not endorse and/or sponsor, LoveToKnow®, its products or its websites, including yourdictionary.com. Use of this trademark on yourdictionary.com is for informational purposes only.