- oad ... obdureness
- obeah ... objected
- objectify ... obliquation
- oblique ... obscurantism
- obscurantist ... obsignatory
- obsolesce ... obtension
- obtest ... occasion
- occasionable ... ocean
- oceanic ... octandrous
- octane ... octospermous
- octostichous ... odmyl
- odometer ... oedematous
- oeiliad ... offhand
- office ... ogling
- oglio ... oleander
- oleandrine ... oligomyold
- oligopetalous ... omissible
- omission ... omophagic
- omoplate ... onerating
- oneration ... onychia
- onychomancy ... oozed
- oozing ... operator
- operatory ... ophthalmologist
- ophthalmology ... opisthodome
- opisthoglypha ... oppressed
- oppressing ... opus
- opuscle ... orbicle
- orbicula ... orcin
- ord ... oreographic
- oreography ... organotrophic
- organule ... originating
- origination ... ornithoscelida
- ornithoscopy ... orthocenter
- orthoceras ... orthoptera
- orthopteran ... oscillatory
- oscine ... ossa
- osse ... osteocommas
- osteocommata ... ostracism
- ostracite ... otological
- otologist ... ousting
- out ... outcrier
- outcrop ... outgive
- outgo ... outliving
- outlook ... outrecuidance
- outrede ... outspoken
- outsport ... outwell
- outwent ... overarch
- overawe ... overcoming
- overconfidence ... overfeed
- overfeeding ... overgreedy
- overgrew ... overladen
- overlading ... overlying
- overmagnify ... overpicture
- overplease ... overriding
- overrigged ... overskip
- overskirt ... oversum
- oversupply ... overvaluing
- overveil ... ovine
- ovioular ... owlism
- owllight ... oxhide
- oxid ... oxygenizable
- oxygenize ... ozonize
- ozonized ... ozonous
Dictionary
English - Welsh