Countable Nouns That Start with SO and End with UM

Explore 13 verified English countable nouns starting with SO and ending with UM, including Sorghum, Solarium, Solanum, Solum, Solatium, Soum and Sourgum. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with SOL
7 words
solarium
solanum
solum
solatium
soliloquium
solstitium
solenium
Starts with SOR
4 words
sorghum
soredium
soralium
sorosporium
Starts with SOU
2 words
soum
sourgum

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