Concrete Nouns That Start with OBS

Browse 21 English concrete nouns starting with the prefix OBS, including Obstacle, Observer, Obstruction, Obsessive, Observatory, Obsidian and Obstetrician. Sort these physical naming words for tangible objects you can see or touch by letter count for descriptive storytelling, sensory writing, and grammar lessons, or consult our noun grammar guide.

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Starts with OBSC
3 words
obscura
obscurantist
obscurant
Starts with OBSE
10 words
observer
obsessive
observatory
obsequies
obsessional
obsessor
obsequy
observator
obsequent
obsessionist
Starts with OBSI
1 words
obsidian
Starts with OBST
7 words
obstacle
obstruction
obstetrician
obstructionist
obstruent
obstructor
obstetrix

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