11 Letter Countable Nouns Starting with OB

Browse 18 valid English 11 letter countable nouns that start with OB, from Observation, Obstruction, Observatory, Obfuscation, Obscuration, Objectivist and Obsessional 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 OBF
1 words
obfuscation
Starts with OBJ3 words
objectivist
objurgation
objurgatrix
Starts with OBL
2 words
obliterator
obliquation
Starts with OBS10 words
observation
obstruction
observatory
obscuration
obsessional
obscurement
obstipation
obsecration
obsignation
obstriction
Starts with OBT
1 words
obtestation
Starts with OBU
1 words
obumbration

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