Countable Nouns Starting with OB and Containing A

Browse 57 valid English countable nouns starting with OB and containing A, from Observation, Obligation, Obstacle, Observable, Obituary, Observance and Observatory 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 OBA
2 words
oban
oba
Starts with OBB
1 words
obbligato
Starts with OBD
1 words
obduration
Starts with OBE
3 words
obeisance
obelia
obedientiary
Starts with OBF
1 words
obfuscation
Starts with OBI
2 words
obituary
obituarist
Starts with OBJ
7 words
objectification
objectivation
objectivization
objurgation
objurgator
objuration
objurgatrix
Starts with OBL
12 words
obligation
obliteration
oblast
oblate
oblation
oblongata
oblateness
obliterator
obligator
obliquation
obligant
obligative
Starts with OBN
1 words
obnubilation
Starts with OBS
19 words
observation
obstacle
observable
observance
observatory
obsidian
obstetrician
obstinacy
observability
obscuration
obsessional
obscura
obscurantist
obstipation
obscurant
observator
obsecration
observancy
obsignation
Starts with OBT
5 words
obtainment
obturator
obtainer
obturation
obtestation
Starts with OBU
1 words
obumbration
Starts with OBV
2 words
obviation
obviator

•Browse Countable Nouns by Letter (A to Z)

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