osteosis
How to pronounce osteosis:
Here are some other common 4-syllable words.
- ossiferous
- osorio
- ortography
- orology
- orologist
- ornithopter
- origami
- orientative
- orientation
- orientated
- organosol
- organizate
- organistic
- orellana
- oregoni
- ordinances
- ordalium
- orchestrating
- orchestrated
- oratoric
- orational
- oralogy
- oquendo
- optologist
- optionor
- optimeter
- opportunist
- opponency
- oppenheimer
- opinator
- ophiuchus
- operative
- opacity
- opacifies
- onychitis
- onolatry
- omnipotence
- omnificent
- ombrometer
- omalgia
- olecranal
- offerable
- offendable
- odorific
- odontoclast
- odontiasis
- octavian
- occupations
- occultism
- observably
- … more
Syllable Fun Fact
Reduplication, a process involving the repetition of a syllable to form a new word or modify its meaning, is common in many languages.
You, too, can become a syllable pro and wow your friends, family, and pets!