Countable Nouns Starting with OB and Containing SI

This list gathers 9 English countable nouns starting with OB and containing SI, such as Obsession, Obsessive, Obsidian, Obsessional, Obtrusion, Obtusity and Obversion. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review singular and plural count rules.

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Starts with OBS
6 words
obsession
obsessive
obsidian
obsessional
obsignation
obsessionist
Starts with OBT
2 words
obtrusion
obtusity
Starts with OBV
1 words
obversion

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