Countable Nouns Starting with OBS and Containing IO

Browse 12 valid English countable nouns starting with OBS and containing IO, from Observation, Obsession, Obstruction, Obstructionist, Obscuration, Obsessional and Obstipation 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 OBSC
1 words
obscuration
Starts with OBSE5 words
observation
obsession
obsessional
obsecration
obsessionist
Starts with OBSI
1 words
obsignation
Starts with OBSO
1 words
obsoletion
Starts with OBST4 words
obstruction
obstructionist
obstipation
obstriction

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