Countable Nouns Starting with OS and Containing UM

This list gathers 8 English countable nouns starting with OS and containing UM, such as Ostium, Osculum, Osmiridium, Ostensorium, Osteospermum, Ossarium and Osmeterium. 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 OSC
1 words
osculum
Starts with OSM
2 words
osmiridium
osmeterium
Starts with OSS
1 words
ossarium
Starts with OST4 words
ostium
ostensorium
osteospermum
osteoglossum

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