Countable Nouns Starting with OB and Containing S

Browse 56 valid English countable nouns starting with OB and containing S, from Observation, Obstacle, Observer, Obsession, Obstruction, Obsessive and Obscurity to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with OBE
6 words
obelisk
obeisance
obelus
obesogen
obeliskoid
obeliscoid
Starts with OBF
1 words
obfuscation
Starts with OBI
1 words
obituarist
Starts with OBJ
1 words
objectivist
Starts with OBL
3 words
oblast
oblateness
obliquus
Starts with OBO
1 words
oboist
Starts with OBS
24 words
observation
obstacle
observer
obsession
obstruction
obsessive
obscurity
observable
observance
observatory
obscenity
obsidian
obstetrician
obstinacy
observability
obstructionist
obsequies
obscuration
obsessional
obscura
obscurantist
obstruent
obstructor
obsessor
Starts with OBT
3 words
obtrusion
obtusity
obtestation
Starts with OBV
2 words
obverse
obversion

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