9 Letter Words Starting with OP and Containing O

When you need a list of 9 letter words that start with OP and contain O, who you gonna call? WordList Finder! Word lists exactly like these 9 letter words are only a few quick finger taps away on our site. Dive into words that start with OP or words with O to find some more options — if you're feeling a little flexible.

9 letter words
openworks
operagoer
operation
operators
operosely
operosity
ophiolite
ophiology
ophiuroid
opinioned
opobalsam
opodeldoc
opponency
opponents
opportune
opposable
opposably
opposites
oppressor
opsomania
opsonised
opsonises
opsoniums
opsonized
opsonizes
optionals
optionees
optioning
optometer
optometry
optophone
optronics